jenkinsci/subversion-plugin — pull request #81 by daniel-beck (2014-05-04 00:33:39+00:00)
Title: [JENKINS-22859] Don't fail revprop validation as easily

This does not *fix* the issue (I don't know how), but it makes it far less likely to occur.

---

Only print an error if both of the following are false:
* Field is empty (option 'exclusion revprop' unused)
* Error is authentication failure (there's other fields for that)

The first is a bit shaky due to the global exclusion revprop feature,
but chances are you're not going to see that 'not supported' error
anyway when not explicitly using a per-project setting.