Prompt that asks what to do after project relocation shown in a loop forever (bug 482565)

https://bugs.eclipse.org/bugs/show_bug.cgi?id=482565

git-svn-id: https://dev.eclipse.org/svnroot/technology/org.eclipse.subversive/trunk@21517 ee007c2a-0a25-0410-9ab9-bf268980928c