The point is, that I don't want to renew the reference. I'm using this kind of reference for Tk-Checkbuttons and I'd have to recreate all of them (and there a quite a few).
I thought, that a reference points to a place in your memory and doesn't care what's written in there. But it looks like I can't replace that piece of data by modifying the original array. Too me it looks a bit odd.
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