Idea 7.0.5 and Subversion 1.4

Am I the only one using this combination?  It seems like since 7.0.4 Idea can't cope with working copy in formats other than 1.5 (but the doc says it should be able to cope with 1.3/1.4/1.5).
Am I cracking up, missing a preference, or it really doesn't work?  JetBrains have been pretty quiet on the issue.
http://www.jetbrains.net/jira/browse/IDEA-21467