jenkinsci/jenkins — pull request #1501 by daniel-beck (2014-12-23 10:49:11+00:00)
Title: [FIXED JENKINS-26208] Do not skip polling while quieting down

Skipping polling while quieting down results in very annoying delays if one relies on SCM commit notifications.

Subversion plugin, upon receiving a post-commit hook notification, will schedule polling of all projects likely affected by the given commit. This notification is effectively lost if Jenkins is, for whatever reason, quieting down when receiving it.