Commit: 2a731adae7d481b258e551db30c640660e81b4ea
Author: Sergey Sharybin
Date:   Fri Mar 1 10:25:14 2019 +0100
Branches: master
https://developer.blender.org/rB2a731adae7d481b258e551db30c640660e81b4ea

Fix T62015: Duplicating object, rotating, pivot point not used

Was caused by another fix in the area, and root to the wrong though that
transformation is only initialized from a fully evaluated dependency graph.

The latter one is not a case when changing transformation mode.

Solved by copying transform to an evaluated object.

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

M       source/blender/blenkernel/BKE_object.h
M       source/blender/blenkernel/intern/object.c
M       source/blender/editors/transform/transform_conversions.c

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

diff --git a/source/blender/blenkernel/BKE_object.h 
b/source/blender/blenkernel/BKE_object.h
index 66a3d96cbdc..58d648b4aa4 100644
--- a/source/blender/blenkernel/BKE_object.h
+++ b/source/blender/blenkernel/BKE_object.h
@@ -209,6 +209,9 @@ void BKE_object_tfm_protected_restore(
         const ObjectTfmProtectedChannels *obtfm,
         const short protectflag);
 
+void BKE_object_tfm_copy(
+        struct Object *object_dst,
+        const struct Object *object_src);
 
 void BKE_object_eval_reset(
         struct Object *ob_eval);
diff --git a/source/blender/blenkernel/intern/object.c 
b/source/blender/blenkernel/intern/object.c
index ddfed90fd97..3c57a5f7086 100644
--- a/source/blender/blenkernel/intern/object.c
+++ b/source/blender/blenkernel/intern/object.c
@@ -1855,6 +1855,30 @@ void BKE_object_tfm_protected_restore(Object *ob,
        }
 }
 
+void BKE_object_tfm_copy(Object *object_dst, const Object *object_src)
+{
+#define TFMCPY(_v) (object_dst->_v = object_src->_v)
+#define TFMCPY3D(_v) copy_v3_v3(object_dst->_v, object_src->_v)
+#define TFMCPY4D(_v) copy_v4_v4(object_dst->_v, object_src->_v)
+
+       TFMCPY3D(loc);
+       TFMCPY3D(dloc);
+       TFMCPY3D(scale);
+       TFMCPY3D(dscale);
+       TFMCPY3D(rot);
+       TFMCPY3D(drot);
+       TFMCPY4D(quat);
+       TFMCPY4D(dquat);
+       TFMCPY3D(rotAxis);
+       TFMCPY3D(drotAxis);
+       TFMCPY(rotAngle);
+       TFMCPY(drotAngle);
+
+#undef TFMCPY
+#undef TFMCPY3D
+#undef TFMCPY4D
+}
+
 void BKE_object_to_mat3(Object *ob, float mat[3][3]) /* no parent */
 {
        float smat[3][3];
diff --git a/source/blender/editors/transform/transform_conversions.c 
b/source/blender/editors/transform/transform_conversions.c
index 4c23806c0aa..7dc934b4cc3 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -5816,6 +5816,10 @@ static void ObjectToTransData(TransInfo *t, TransData 
*td, Object *ob)
        Object *object_eval = DEG_get_evaluated_object(t->depsgraph, ob);
        if (skip_invert == false && constinv == false) {
                object_eval->transflag |= OB_NO_CONSTRAINTS;  /* 
BKE_object_where_is_calc checks this */
+               /* It is possiblre to have transform data initialization prior 
to a
+                * complete dependency graph evaluated. Happens, for example, 
when
+                * changing transformation mode. */
+               BKE_object_tfm_copy(object_eval, ob);
                BKE_object_where_is_calc(t->depsgraph, t->scene, object_eval);
                object_eval->transflag &= ~OB_NO_CONSTRAINTS;
        }
@@ -5825,11 +5829,11 @@ static void ObjectToTransData(TransInfo *t, TransData 
*td, Object *ob)
        /* Copy newly evaluated fields to the original object, similar to how
         * active dependency graph will do it. */
        copy_m4_m4(ob->obmat, object_eval->obmat);
-       /* Hack over hack, looks like in some cases eval object has not yet 
been fully flushed or so?
-        * In some cases, macro operators starting transform just after 
creating a new object (OBJECT_OT_duplicate),
-        * if dupli flags are not protected, they can be erased here (see 
T61787). */
-       ob->transflag = ((object_eval->transflag & ~(OB_DUPLI | 
OB_DUPLIFACES_SCALE | OB_DUPLIROT)) |
-                        (ob->transflag & (OB_DUPLI | OB_DUPLIFACES_SCALE | 
OB_DUPLIROT)));
+       /* Only copy negative scale flag, this is the only flag which is 
modifed by
+        * the BKE_object_where_is_calc(). The rest of the flags we need to 
keep,
+        * otherwise we might loose dupli flags  (see T61787). */
+       ob->transflag &= ~OB_NEG_SCALE;
+       ob->transflag |= (object_eval->transflag & OB_NEG_SCALE);
 
        td->ob = ob;

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