[Bf-blender-cvs] [514f4e8b47b] blender-v3.3-release: Fix T101903: Crash when deleting library in some cases.

Bastien Montagne noreply at git.blender.org
Wed Oct 26 12:00:20 CEST 2022


Commit: 514f4e8b47bf4c3d57cf74780cb3b8178e8f1a19
Author: Bastien Montagne
Date:   Wed Oct 19 09:18:47 2022 +0200
Branches: blender-v3.3-release
https://developer.blender.org/rB514f4e8b47bf4c3d57cf74780cb3b8178e8f1a19

Fix T101903: Crash when deleting library in some cases.

Remapping in batch deletion could end up calling viewlayer resync code
on partially invalid BMain (some IDs still in Main using IDs removed
from Main).

Think this code can actually be further optimized, but this fix should
be safe enough for 3.3 (and potentially 2.93).

Thanks to Jeroen (@jbakker) for the initial investigation.

===================================================================

M	source/blender/blenkernel/intern/lib_id_delete.c

===================================================================

diff --git a/source/blender/blenkernel/intern/lib_id_delete.c b/source/blender/blenkernel/intern/lib_id_delete.c
index 8d5699d7d49..78e800e1fdb 100644
--- a/source/blender/blenkernel/intern/lib_id_delete.c
+++ b/source/blender/blenkernel/intern/lib_id_delete.c
@@ -23,6 +23,7 @@
 #include "BKE_idprop.h"
 #include "BKE_idtype.h"
 #include "BKE_key.h"
+#include "BKE_layer.h"
 #include "BKE_lib_id.h"
 #include "BKE_lib_override.h"
 #include "BKE_lib_remap.h"
@@ -217,6 +218,7 @@ static size_t id_delete(Main *bmain, const bool do_tagged_deletion)
 
   BKE_main_lock(bmain);
   if (do_tagged_deletion) {
+    BKE_layer_collection_resync_forbid();
     /* Main idea of batch deletion is to remove all IDs to be deleted from Main database.
      * This means that we won't have to loop over all deleted IDs to remove usages
      * of other deleted IDs.
@@ -279,6 +281,9 @@ static size_t id_delete(Main *bmain, const bool do_tagged_deletion)
       }
     }
 
+    BKE_layer_collection_resync_allow();
+    BKE_main_collection_sync_remap(bmain);
+
     /* Now we can safely mark that ID as not being in Main database anymore. */
     /* NOTE: This needs to be done in a separate loop than above, otherwise some usercounts of
      * deleted IDs may not be properly decreased by the remappings (since `NO_MAIN` ID usercounts



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