Crash fix: do not allow deleting the last node of a path. #1432
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Doing so would create a zero length path. Worse, the path widget still appears and trying to delete that would make a -1 length path, iterating over which takes forever (but eventually segfaults).
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Doing so would create a zero length path. Worse, the path widget still
appears and trying to delete that would make a -1 length path, iterating
over which takes forever (but eventually segfaults).