Corrupt working copy after merge cancel - SVN 1.7.4

Hello - We are using SVN 1.7.4 and TortoiseSVN 1.7.6 on Windows. My colleague was doing a merge and hit cancel. His working copy now appears to be corrupted. All operations fail with a message that cleanup is needed. Trying to run cleanup at the top level folder results in Tortoise putting up an

Separate options to enable text deltas and property changes for 'replay' operation

Hi, I'm a developer of SVN revision graph plugin for IntelliJ IDEA (http://code.google.com/p/svn-rev-graph/). The graph, that the plugin builds, includes merge information that is obtained from 'log -g' output. I'm looking at implementing a cache of history data to avoid a large number of reposit