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Dependency recompilation leaves old code active

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I spotted something; I haven't looked into it much, but thought I'd ask here:

Before, after editing a dependency I was trying out in a project, running mix compile from a terminal would compile the dependency again, and following that with recompile inside iex would make those edits visible.

I've lately moved to 1.20.0-rc.1-otp-28, and this sequence apparently no longer behaves the same. Compilation still occurs and the shell returns :ok, yet my changes aren't visible, as though the previous version remains loaded. Quitting and restarting the server makes the edits appear.

I haven't examined it closely and don't know whether it's a bug or something different. Has anybody else run into this?

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Follow the reasoning

  1. It looks as if the module got compiled again without being loaded again. Compiling and loading are distinct steps.

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