live.preserve_modifier_inputs

preserve_modifier_inputs(trees)

Keep Geometry Nodes modifier input values across an interface rebuild.

Snapshots the input state of every Geometry Nodes modifier (on any object) whose node_group is one of trees, keyed by interface socket name: the value, and whether the input reads a named attribute instead (type and attribute_name). On exit — also when the body raised, so a failed in-place rebuild keeps the values of the sockets it did build — each entry whose socket name still exists on the modifier’s (possibly rebuilt, possibly remapped) tree is reapplied; sockets whose type changed are skipped, as is anything that fails to apply — the reapply step never raises.