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Thanks for reminding me of the branch, it had slipped my mind. These changes are some low hanging fruit from problems reported by cppcheck, clang --analyze and gcc warnings. I apologise for not updating the Changelog but I don't know when I'll next get the chance to code on this.
I have run basic smoke tests to make sure the changes don't break anything. Though I would have liked to find real bugs that triggered the anomalous conditions that seems exceedingly tricky!