Skip running model finalizers at exit (Comfy-Org#12994)

Author: blepping

comfy/model_management.py

@@ -541,6 +541,7 @@ def _set_model(self, model):
         if model.parent is not None:
             self._parent_model = weakref.ref(model.parent)
             self._patcher_finalizer = weakref.finalize(model, self._switch_parent)
+            self._patcher_finalizer.atexit = False
 
     def _switch_parent(self):
         model = self._parent_model()
@@ -587,6 +588,7 @@ def model_load(self, lowvram_model_memory=0, force_patch_weights=False):
 
         self.real_model = weakref.ref(real_model)
         self.model_finalizer = weakref.finalize(real_model, cleanup_models)
+        self.model_finalizer.atexit = False
         return real_model
 
     def should_reload_model(self, force_patch_weights=False):