A URL cannot contain blains. According to the RFC, all blanks (and some other characters) have to be encoded as %20 etc. As a result, "svn info" shows correct URLs (i. e. URLs with %20 in it, not with blanks in it).

When providing a URL with %20 in it to the Jenkins GUI, Jenkins makes two errors:

1. It says that this URL is not in the repository, which is simply wrong.
2. It can checkout using this URL but is unable to further proceed.

So the syntax handling should be improved.