Commits on Jul 19, 2023

1. Fix memory corruption if task is launched inside finalizer …

   In #48919, the tid selection logic inside `enq_task` gained a
   `!GC.in_finalizer()` condition. However, this made it possible
   for `workqueue_at` to be reached with `tid==0`, which would
   attempt and out-of-bounds write under `@inbounds`, corrupting
   memory. This was not caught in the test suite despite
   `--check-bounds=yes`, because our `--check-bounds=yes` is currently
   best effort. That would be fixed by #50239, which exposed this
   bug.

   

   Keno committed Jul 19, 2023
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