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As an aid, let me show you a video: https://streamable.com/c2bnko, though it's not needed to follow this question.

I'm going to edebug org-id-alist-to-hash (0:13 in video). First I verify that the variable being passed in is a list (namely org-id-locations). Which is shown true in edebug too...but then on the next edebug step, point is still on the same symbol, and now the echo area shows it as a hash table. Which then crashes the function, of course, since it expects a list.

What could be going on? Why would it satisfy listp, but change its mind and be a hash table before org-id-alist-to-hash can do anything with it?

I cannot make code to reproduce, since it's intermittent or depends on very particular circumstances.

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    I couldn't tell from the video when you started debugging, but I can see (when (listp org-id-locations) (setq org-id-locations (org-id-alist-to-hash org-id-locations))) which sounds exactly like the "started as a list, now it's a hash" symptom. So... can you explain more clearly what the issue is? Commented Jul 25, 2024 at 13:39
  • Video is not good for StackExchange anyway since it will disappear. I think my question describes the issue adequately on its own. But if you want to check again, you see me doing M-x edebug-defun at 0:13, and only after that do I go and eval. The odd behavior can be observed at 0:21-0:25. Commented Jul 26, 2024 at 20:33
  • I also realize it's confusing that the thing I want to do is exactly to convert it to a hash table. :-) The only issue is I can't, because it already becomes a hash table as it's being passed into the function that's supposed to do the conversion. Commented Jul 26, 2024 at 20:37
  • Well the video isn't there anymore. I suggest you instead update the question with code that other people can copy/run/debug to reproduce the problem. Commented Jul 27, 2024 at 0:04
  • I cannot make such code. If I could, I'd probably solve the problem, which is intermittent... Refreshed video link, but really, the question just boils down to: why might edebug step twice on the same variable? Commented Jul 27, 2024 at 13:35

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