Geometry Nodes: remove some unnecessary updates

This fixes a few "obvious" places where we do unnecessary updates.
Those special cases were added in the early days of geometry nodes
when many updates were missing and we tried to get it to work at all.
There is a fairly high risk that with this change some required updates
will be missing again. Those can be fixed when we find thme.
Some of the update issues might have been fixed by rB58818cba40794905f9323080e60884e090f2d388
and similar changes we added over time.

Differential Revision: https://developer.blender.org/D11238

source/blender/blenkernel/intern/node.cc

@@ -4327,7 +4327,7 @@ void ntreeUpdateAllUsers(Main *main, ID *id)
 
   if (GS(id->name) == ID_NT) {
     bNodeTree *ngroup = (bNodeTree *)id;
-    if (ngroup->type == NTREE_GEOMETRY) {
+    if (ngroup->type == NTREE_GEOMETRY && (ngroup->update & NTREE_UPDATE_GROUP)) {
       LISTBASE_FOREACH (Object *, object, &main->objects) {
         LISTBASE_FOREACH (ModifierData *, md, &object->modifiers) {
           if (md->type == eModifierType_Nodes) {