From ddbf41d88d43a544c65c18f756fca7ab28ce5620 Mon Sep 17 00:00:00 2001 From: Bastien Montagne Date: Thu, 27 Aug 2020 15:48:01 +0200 Subject: Fix T80104: Crash on making material local. Problem is again with the embedded data, we want to make those local together with their owner ID, but sometimes we are actually dealing with copies here, which are inheritently already local. Code did not considered that possibility before, leading to access to a NULL `lib` pointer. This should also be back-ported to 2.83 LTS release. Maniphest Tasks: T80104 Differential Revision: https://developer.blender.org/D8731 --- source/blender/blenkernel/intern/lib_id.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'source/blender/blenkernel') diff --git a/source/blender/blenkernel/intern/lib_id.c b/source/blender/blenkernel/intern/lib_id.c index 2052a1e8536..52f5bf067ca 100644 --- a/source/blender/blenkernel/intern/lib_id.c +++ b/source/blender/blenkernel/intern/lib_id.c @@ -342,8 +342,11 @@ static int lib_id_expand_local_cb(LibraryIDLinkCallbackData *cb_data) } if (cb_flag & IDWALK_CB_EMBEDDED) { - /* Embedded data-blocks need to be made fully local as well. */ - if (*id_pointer != NULL) { + /* Embedded data-blocks need to be made fully local as well. + * Note however that in some cases (when owner ID had to be duplicated instead of being made + * local directly), its embedded IDs should also have already been duplicated, and hence be + * fully local here already. */ + if (*id_pointer != NULL && ID_IS_LINKED(*id_pointer)) { BLI_assert(*id_pointer != id_self); lib_id_clear_library_data_ex(bmain, *id_pointer); -- cgit v1.2.3