Fix T94544: crash removing image used as camera background via python

Since 2.8, background images are tied to cameras (in 2.79 these were
tied to a View3D I think).
Code in `BKE_library_id_can_use_idtype` wasnt taking this relation
between `Camera` and `Image` into account, thus leading to ID deletion/
unlinking not working properly -- in particular `libblock_remap_data`
not doing its thing (and leaving the camera as a user of the image),
then things went downhill from there...

Now make the "Camera-can-use-an-Image" relation clear in
`BKE_library_id_can_use_idtype`.

Maniphest Tasks: T94544

Differential Revision: https://developer.blender.org/D13722

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/blenkernel/intern/lib_query.c b/source/blender/blenkernel/intern/lib_query.c
index cbbe07f99d8..3cc7332b362 100644
--- a/source/blender/blenkernel/intern/lib_query.c
+++ b/source/blender/blenkernel/intern/lib_query.c
@@ -406,7 +406,7 @@ bool BKE_library_id_can_use_idtype(ID *id_owner, const short id_type_used)
     case ID_LA:
       return (ELEM(id_type_used, ID_TE));
     case ID_CA:
-      return ELEM(id_type_used, ID_OB);
+      return ELEM(id_type_used, ID_OB, ID_IM);
     case ID_KE:
       /* Warning! key->from, could be more types in future? */
       return ELEM(id_type_used, ID_ME, ID_CU, ID_LT);