LibOverride: Add an 'post apply' callback to IDTypeInfo.

Currently this is needed to properly tag PointCache's for info update
(fixes an issue reported in T82503).

Suspect we may need this in more cases in the future though, RNA
assign/update processes are not always 100% enough to deal with
complicated corner cases.

1 files changed, 12 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_access_compare_override.c b/source/blender/makesrna/intern/rna_access_compare_override.c
index 1e7f5e841ba..2d6f1bbc059 100644
--- a/source/blender/makesrna/intern/rna_access_compare_override.c
+++ b/source/blender/makesrna/intern/rna_access_compare_override.c
@@ -42,6 +42,7 @@
 
 #include "BKE_armature.h"
 #include "BKE_idprop.h"
+#include "BKE_idtype.h"
 #include "BKE_lib_override.h"
 #include "BKE_main.h"
 
@@ -1178,6 +1179,17 @@ void RNA_struct_override_apply(Main *bmain,
 #endif
     }
   }
+
+  /* Some cases (like point caches) may require additional post-processing. */
+  if (RNA_struct_is_a(ptr_dst->type, &RNA_ID)) {
+    ID *id_dst = ptr_dst->data;
+    ID *id_src = ptr_src->data;
+    const IDTypeInfo *id_type = BKE_idtype_get_info_from_id(id_dst);
+    if (id_type->lib_override_apply_post != NULL) {
+      id_type->lib_override_apply_post(id_dst, id_src);
+    }
+  }
+
 #ifdef DEBUG_OVERRIDE_TIMEIT
   TIMEIT_END_AVERAGED(RNA_struct_override_apply);
 #endif