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Type:
Bug
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Resolution: Not A Defect
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Priority:
Minor
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Component/s: git-plugin
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Environment:Debian 10 64-bit
Jenkins installed via apt, not running in a container
openjdk 11.0.12 2021-07-20
OpenJDK Runtime Environment (build 11.0.12+7-post-Debian-2deb10u1)
OpenJDK 64-Bit Server VM (build 11.0.12+7-post-Debian-2deb10u1, mixed mode, sharing)
Jenkins: 2.303.1
OS: Linux - 4.19.0-16-amd64
---
jdk-tool:1.5
pipeline-stage-tags-metadata:1.9.1
momentjs:1.1.1
workflow-cps-global-lib:2.21
pipeline-input-step:2.12
script-security:1.78
windows-slaves:1.8
pam-auth:1.6
workflow-multibranch:2.26
ssh-slaves:1.33.0
jquery3-api:3.6.0-2
checks-api:1.7.2
workflow-cps:2.93
jaxb:2.3.0.1
gradle:1.37.1
role-strategy:3.2.0
font-awesome-api:5.15.4-1
workflow-step-api:2.24
credentials:2.5
token-macro:266.v44a80cf277fd
ldap:2.7
pipeline-milestone-step:1.3.2
trilead-api:1.0.13
jsch:0.1.55.2
pipeline-model-extensions:1.9.1
pipeline-build-step:2.15
lockable-resources:2.11
scm-api:2.6.5
timestamper:1.13
workflow-scm-step:2.13
workflow-api:2.46
matrix-auth:2.6.8
workflow-support:3.8
github:1.34.1
workflow-job:2.41
pipeline-rest-api:2.19
echarts-api:5.1.2-11
git-client:3.9.0
pipeline-github-lib:1.0
pipeline-graph-analysis:1.11
credentials-binding:1.27
email-ext:2.83
ssh-credentials:1.19
apache-httpcomponents-client-4-api:4.5.13-1.0
pipeline-model-definition:1.9.1
bouncycastle-api:2.24
command-launcher:1.6
git-server:1.10
durable-task:1.39
workflow-durable-task-step:2.39
pipeline-model-api:1.9.1
structs:1.23
ws-cleanup:0.39
git:4.8.2
branch-api:2.6.5
okhttp-api:3.14.9
workflow-basic-steps:2.24
caffeine-api:2.9.2-29.v717aac953ff3
github-api:1.123
popper-api:1.16.1-2
matrix-project:1.19
ant:1.11
bootstrap4-api:4.6.0-3
dashboard-view:2.17
jackson2-api:2.12.4
ace-editor:1.1
plain-credentials:1.7
junit:1.52
mailer:1.34
pipeline-stage-step:2.5
popper2-api:2.9.3-1
display-url-api:2.3.5
sshd:3.1.0
workflow-aggregator:2.6
jjwt-api:0.11.2-9.c8b45b8bb173
pipeline-stage-view:2.19
bootstrap5-api:5.1.0-3
build-timeout:1.20
github-branch-source:2.11.2
resource-disposer:0.16
handlebars:3.0.8
snakeyaml-api:1.29.1
cloudbees-folder:6.16
antisamy-markup-formatter:2.1
plugin-util-api:2.4.0
Result: [Plugin:jdk-tool, Plugin:pipeline-stage-tags-metadata, Plugin:momentjs, Plugin:workflow-cps-global-lib, Plugin:pipeline-input-step, Plugin:script-security, Plugin:windows-slaves, Plugin:pam-auth, Plugin:workflow-multibranch, Plugin:ssh-slaves, Plugin:jquery3-api, Plugin:checks-api, Plugin:workflow-cps, Plugin:jaxb, Plugin:gradle, Plugin:role-strategy, Plugin:font-awesome-api, Plugin:workflow-step-api, Plugin:credentials, Plugin:token-macro, Plugin:ldap, Plugin:pipeline-milestone-step, Plugin:trilead-api, Plugin:jsch, Plugin:pipeline-model-extensions, Plugin:pipeline-build-step, Plugin:lockable-resources, Plugin:scm-api, Plugin:timestamper, Plugin:workflow-scm-step, Plugin:workflow-api, Plugin:matrix-auth, Plugin:workflow-support, Plugin:github, Plugin:workflow-job, Plugin:pipeline-rest-api, Plugin:echarts-api, Plugin:git-client, Plugin:pipeline-github-lib, Plugin:pipeline-graph-analysis, Plugin:credentials-binding, Plugin:email-ext, Plugin:ssh-credentials, Plugin:apache-httpcomponents-client-4-api, Plugin:pipeline-model-definition, Plugin:bouncycastle-api, Plugin:command-launcher, Plugin:git-server, Plugin:durable-task, Plugin:workflow-durable-task-step, Plugin:pipeline-model-api, Plugin:structs, Plugin:ws-cleanup, Plugin:git, Plugin:branch-api, Plugin:okhttp-api, Plugin:workflow-basic-steps, Plugin:caffeine-api, Plugin:github-api, Plugin:popper-api, Plugin:matrix-project, Plugin:ant, Plugin:bootstrap4-api, Plugin:dashboard-view, Plugin:jackson2-api, Plugin:ace-editor, Plugin:plain-credentials, Plugin:junit, Plugin:mailer, Plugin:pipeline-stage-step, Plugin:popper2-api, Plugin:display-url-api, Plugin:sshd, Plugin:workflow-aggregator, Plugin:jjwt-api, Plugin:pipeline-stage-view, Plugin:bootstrap5-api, Plugin:build-timeout, Plugin:github-branch-source, Plugin:resource-disposer, Plugin:handlebars, Plugin:snakeyaml-api, Plugin:cloudbees-folder, Plugin:antisamy-markup-formatter, Plugin:plugin-util-api]Debian 10 64-bit Jenkins installed via apt, not running in a container openjdk 11.0.12 2021-07-20 OpenJDK Runtime Environment (build 11.0.12+7-post-Debian-2deb10u1) OpenJDK 64-Bit Server VM (build 11.0.12+7-post-Debian-2deb10u1, mixed mode, sharing) Jenkins: 2.303.1 OS: Linux - 4.19.0-16-amd64 --- jdk-tool:1.5 pipeline-stage-tags-metadata:1.9.1 momentjs:1.1.1 workflow-cps-global-lib:2.21 pipeline-input-step:2.12 script-security:1.78 windows-slaves:1.8 pam-auth:1.6 workflow-multibranch:2.26 ssh-slaves:1.33.0 jquery3-api:3.6.0-2 checks-api:1.7.2 workflow-cps:2.93 jaxb:2.3.0.1 gradle:1.37.1 role-strategy:3.2.0 font-awesome-api:5.15.4-1 workflow-step-api:2.24 credentials:2.5 token-macro:266.v44a80cf277fd ldap:2.7 pipeline-milestone-step:1.3.2 trilead-api:1.0.13 jsch:0.1.55.2 pipeline-model-extensions:1.9.1 pipeline-build-step:2.15 lockable-resources:2.11 scm-api:2.6.5 timestamper:1.13 workflow-scm-step:2.13 workflow-api:2.46 matrix-auth:2.6.8 workflow-support:3.8 github:1.34.1 workflow-job:2.41 pipeline-rest-api:2.19 echarts-api:5.1.2-11 git-client:3.9.0 pipeline-github-lib:1.0 pipeline-graph-analysis:1.11 credentials-binding:1.27 email-ext:2.83 ssh-credentials:1.19 apache-httpcomponents-client-4-api:4.5.13-1.0 pipeline-model-definition:1.9.1 bouncycastle-api:2.24 command-launcher:1.6 git-server:1.10 durable-task:1.39 workflow-durable-task-step:2.39 pipeline-model-api:1.9.1 structs:1.23 ws-cleanup:0.39 git:4.8.2 branch-api:2.6.5 okhttp-api:3.14.9 workflow-basic-steps:2.24 caffeine-api:2.9.2-29.v717aac953ff3 github-api:1.123 popper-api:1.16.1-2 matrix-project:1.19 ant:1.11 bootstrap4-api:4.6.0-3 dashboard-view:2.17 jackson2-api:2.12.4 ace-editor:1.1 plain-credentials:1.7 junit:1.52 mailer:1.34 pipeline-stage-step:2.5 popper2-api:2.9.3-1 display-url-api:2.3.5 sshd:3.1.0 workflow-aggregator:2.6 jjwt-api:0.11.2-9.c8b45b8bb173 pipeline-stage-view:2.19 bootstrap5-api:5.1.0-3 build-timeout:1.20 github-branch-source:2.11.2 resource-disposer:0.16 handlebars:3.0.8 snakeyaml-api:1.29.1 cloudbees-folder:6.16 antisamy-markup-formatter:2.1 plugin-util-api:2.4.0 Result: [Plugin:jdk-tool, Plugin:pipeline-stage-tags-metadata, Plugin:momentjs, Plugin:workflow-cps-global-lib, Plugin:pipeline-input-step, Plugin:script-security, Plugin:windows-slaves, Plugin:pam-auth, Plugin:workflow-multibranch, Plugin:ssh-slaves, Plugin:jquery3-api, Plugin:checks-api, Plugin:workflow-cps, Plugin:jaxb, Plugin:gradle, Plugin:role-strategy, Plugin:font-awesome-api, Plugin:workflow-step-api, Plugin:credentials, Plugin:token-macro, Plugin:ldap, Plugin:pipeline-milestone-step, Plugin:trilead-api, Plugin:jsch, Plugin:pipeline-model-extensions, Plugin:pipeline-build-step, Plugin:lockable-resources, Plugin:scm-api, Plugin:timestamper, Plugin:workflow-scm-step, Plugin:workflow-api, Plugin:matrix-auth, Plugin:workflow-support, Plugin:github, Plugin:workflow-job, Plugin:pipeline-rest-api, Plugin:echarts-api, Plugin:git-client, Plugin:pipeline-github-lib, Plugin:pipeline-graph-analysis, Plugin:credentials-binding, Plugin:email-ext, Plugin:ssh-credentials, Plugin:apache-httpcomponents-client-4-api, Plugin:pipeline-model-definition, Plugin:bouncycastle-api, Plugin:command-launcher, Plugin:git-server, Plugin:durable-task, Plugin:workflow-durable-task-step, Plugin:pipeline-model-api, Plugin:structs, Plugin:ws-cleanup, Plugin:git, Plugin:branch-api, Plugin:okhttp-api, Plugin:workflow-basic-steps, Plugin:caffeine-api, Plugin:github-api, Plugin:popper-api, Plugin:matrix-project, Plugin:ant, Plugin:bootstrap4-api, Plugin:dashboard-view, Plugin:jackson2-api, Plugin:ace-editor, Plugin:plain-credentials, Plugin:junit, Plugin:mailer, Plugin:pipeline-stage-step, Plugin:popper2-api, Plugin:display-url-api, Plugin:sshd, Plugin:workflow-aggregator, Plugin:jjwt-api, Plugin:pipeline-stage-view, Plugin:bootstrap5-api, Plugin:build-timeout, Plugin:github-branch-source, Plugin:resource-disposer, Plugin:handlebars, Plugin:snakeyaml-api, Plugin:cloudbees-folder, Plugin:antisamy-markup-formatter, Plugin:plugin-util-api]
After the latest Jenkins update, a large amount of users were automatically created with a specific github pipeline marked as the origin. This is likely from the git plugin "Create new accounts based on author/committer's email" option, which is and has been disabled all this time. As such, there is likely a bug with this setting. I've tried deleting the users manually, but the users keep getting created automatically a while after they are deleted. In the attached screenshot, the users covered by green are the ones that were created manually, and the red ones are the new ones that suddenly popped up, all originating to one github project.
I'm not sure what the version of Jenkins / the plugins were before updating, but I've pretty much always applied all updates as soon as they become available. 
