fix (callbacks): Refcount mess in mvAddCallback() and mvRunCallback()#2580

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hoffstadt merged 1 commit intohoffstadt:masterfrom

v-ein:bugfix/2036-refcount-mess

Dec 15, 2025

Commits on Dec 14, 2025

fix (callbacks): A large rework of the callback mechanism that fixes unbalanced INCREF/DECREF calls and prevents leaks and some other issues #2036
v-ein
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