Hi, we have this plugin configured to be executed when we push changes to master branch only.

Sometimes  (once, twice per week) this pipeline is executed automatically when we push changes into other branches (on same repository). We cannot find any behaviour to reproduce it... It's happens only few times.

This behaviour started few weeks ago automatically. We updated Jenkins and plugins to the last version and it's still happens.

We enabled webhooks logs at Bitbucket and we didn't see troubles there... The payload seams correct (contains branch name, and commit hash are correct to the related branch)

 Also we enable more verbose logs in Jenkins, this is what we see:

Nov 17, 2020 7:38:23 AM INFO com.cloudbees.jenkins.plugins.BitbucketPayloadProcessor processPayload
Processing new Webhooks payload

Nov 17, 2020 7:38:23 AM INFO com.cloudbees.jenkins.plugins.BitbucketPayloadProcessor processWebhookPayload
Received commit hook notification for {"scm":"git","website":"","uuid":"{be286268-cf76-4046-a33e-9bdc8e4745ff}","links":{"self":
{"href":"https://api.bitbucket.org/2.0/repositories/..............

Nov 17, 2020 7:38:23 AM INFO com.cloudbees.jenkins.plugins.BitbucketJobProbe triggerMatchingJobs 
Triggering BitBucket job backend-deploy

 Note: "backend-deploy" is our master branch pipeline 

This is our pipeline configuration

Note: When we do a "merge to master" manually from our branches this jobs is executed correctly. As I said before, "sometimes" runs automatically when push changes into other branches (non-master).

These are screenshots from Bitbucket webhooks history