Fix T57825: Crash when assign material

We need to make sure that all the nested node trees are localized.

Because of this reason, we need to roll back to a bit older way
of dealing with materials.

Should be all safe now with the fixes from few moments ago.

1 files changed, 5 insertions, 9 deletions

diff --git a/source/blender/blenkernel/intern/material.c b/source/blender/blenkernel/intern/material.c
index fc0423dc5e5..0e64b9dd6d0 100644
--- a/source/blender/blenkernel/intern/material.c
+++ b/source/blender/blenkernel/intern/material.c
@@ -235,19 +235,15 @@ Material *BKE_material_localize(Material *ma)
 	 *
 	 * NOTE: Only possible once nested node trees are fully converted to that too. */
 
-	Material *man;
-
-	BKE_id_copy_ex(
-	        NULL, &ma->id, (ID **)&man,
-	        (LIB_ID_CREATE_NO_MAIN |
-	         LIB_ID_CREATE_NO_USER_REFCOUNT |
-	         LIB_ID_COPY_NO_PREVIEW |
-	         LIB_ID_COPY_NO_ANIMDATA),
-	        false);
+	Material *man = BKE_libblock_copy_nolib(&ma->id, false);
 
 	man->texpaintslot = NULL;
 	man->preview = NULL;
 
+	if (ma->nodetree != NULL) {
+		man->nodetree = ntreeLocalize(ma->nodetree);
+	}
+
 	/* man->gp_style = NULL; */ /* XXX: We probably don't want to clear here, or else we may get problems with COW later? */
 	BLI_listbase_clear(&man->gpumaterial);