Inside of src/main/java/hudson/scm/SubversionSCM.java the buildEnvVars() function does not load env variables corresponding to the svn URL. Therefore it throws a bunch of errors(no revision found corresponding to...) in the logs when you use something like $SVN_URL for the url in a job.

I think just adding the function to load the build environment would solve this issue but maybe I am mistaken.

I meant to get to this since similar fixes have been done elsewhere in the code but I have not yet spent the time.