Commit: 72724211df13a3e2b93839511be44e7b5f72a190
Author: Bastien Montagne
Date:   Mon Feb 4 17:37:19 2019 +0100
Branches: master
https://developer.blender.org/rB72724211df13a3e2b93839511be44e7b5f72a190

BKE_library: add 'no preview' flag to LIB_ID_COPY_LOCALIZE.

No local work copy is expected to need preview data, at least it should
not. Part of copy flags cleanup, done in separate commit in case
something goes wrong here...

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

M       source/blender/blenkernel/BKE_library.h
M       source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc

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

diff --git a/source/blender/blenkernel/BKE_library.h 
b/source/blender/blenkernel/BKE_library.h
index 0438ac95ce2..6166760fd30 100644
--- a/source/blender/blenkernel/BKE_library.h
+++ b/source/blender/blenkernel/BKE_library.h
@@ -94,7 +94,7 @@ enum {
        LIB_ID_COPY_CACHES             = 1 << 18,
        /* Don't copy id->adt, used by ID datablock localization routines. */
        LIB_ID_COPY_NO_ANIMDATA        = 1 << 19,
-       /* Mesh: Reference CD data layers instead of doing real copy. */
+       /* Mesh: Reference CD data layers instead of doing real copy - USE WITH 
CAUTION! */
        LIB_ID_COPY_CD_REFERENCE       = 1 << 20,
 
        /* *** XXX Hackish/not-so-nice specific behaviors needed for some 
corner cases. *** */
@@ -113,6 +113,7 @@ enum {
        LIB_ID_COPY_LOCALIZE           = LIB_ID_CREATE_NO_MAIN |
                                         LIB_ID_CREATE_NO_USER_REFCOUNT |
                                         LIB_ID_CREATE_NO_DEG_TAG |
+                                        LIB_ID_COPY_NO_PREVIEW |
                                         LIB_ID_COPY_CACHES,
 };
 
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc 
b/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
index 78b3776455f..ff3128a2fb6 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
+++ b/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
@@ -318,10 +318,8 @@ bool scene_copy_inplace_no_main(const Scene *scene, Scene 
*new_scene)
        bool result = BKE_id_copy_ex(NULL,
                                     id_for_copy,
                                     (ID **)&new_scene,
-                                    LIB_ID_CREATE_NO_MAIN |
-                                    LIB_ID_CREATE_NO_USER_REFCOUNT |
-                                    LIB_ID_CREATE_NO_ALLOCATE |
-                                    LIB_ID_CREATE_NO_DEG_TAG);
+                                    LIB_ID_COPY_LOCALIZE |
+                                    LIB_ID_CREATE_NO_ALLOCATE);
 
 #ifdef NESTED_ID_NASTY_WORKAROUND
        if (result) {

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