The Node Wrangler addon has a _Reset Nodes_ operator that can remove the input
node of a node zone. This crashes in reference set updates because the code
expects valid input/output node pairs in each zone.
The fix is two-fold:
1. Finding zones for the runtime now returns an empty result to ensure no
invalid node pointers are being accessed. This should not happen in practice,
all operators should make sure zone relationships are not broken.
2. The node wrangler addon is updated to ignore all zone types, including the
newer repeat, closure, and for-each-element zones. The type filtering was
outdated and now uses the `bl_idname` consistently.
Pull Request: https://projects.blender.org/blender/blender/pulls/147028
8697bffe22