There exists an old preliminary release of the pretested integration plugin, that have another artifact id called pretest-commit.

The Jenkins users sometimes install this instead of the pretested integration plugin, so it must be deprecated.

Confusion is the description is the same and the wiki-pages and repositories.

Solutions is to make a release of pretested integration plugin, under the artifact id called pretest-commit, and with reference to a new wiki-page. That wikipage can then be deprecated and the plugin as well.

https://wiki.jenkins-ci.org/display/JENKINS/Proposed+Plugin+Deprecation