confirmed this fixes the issue.
On second thoughts:
The loggers are one of the components destroyed at last. So in fact they should be valid during the shutdown/destruction of ANY plugin.
However, logging/UI access in operations called during shutdown (of plugins) should ALWAYS check if the app is shutting down -> just as Loaden did it in the patch for the CC branch. Basically that's what this method is for!
I have (however) attached a patch concerning the loggers for testing. It shouldn't harm but may introduce some "safety"... although it's not really a "good way".
I would welcome testing and feedback (@oBFusCATed: e.g. if this "fixes" the crash in the debugger branch).
I personally hope we can publish a CC BRANCH build in the "Nightly builds" board.
I had asked killerbot to do so, I'm afraid he didn't find the time or wanted to wait until the show-stoppers are solved.