title: Undo mark as merged
body: <p>I am using Eclipse Indigo and subeclipse as the svn plugin for eclipse. Now here is the situation. I was synchronizing my project with the remote repository. There were conflicts present and I mistakenly clicked on "mark as merged" for one of the files without merging it. I tried restarting eclipse and some other stupid hacks. But nothing works out. So is there a way to undo "mark as merged" action?  </p>