== Armature Animation Fixes ==

This commit fixes several bugs related to animating armatures. I've also tidied up the formatting in a few files along the way, and also commented the flags for this pose->flag.

What's new/fixed:
* Undo will no longer destroy entire un-keyframed poses. Now it behaves as expected, and only reverses the most recent change.
* On some files, POSE_DO_UNLOCK somehow got set on files and never cleared. The symptom of this was a file in which you suddenly could no longer pose an armature at all without using auto-keyframing. A check to prevent this from happening again has been added (it will also fix old files too)

Notes:
- Now, all PoseChannels get tagged with BONE_UNKEYED after they have been transformed. This flag prevents IPO data being flushed over these new values, even after undo. 
- These tags only get removed on frame-changes or inserting new keyframes. 

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_action.h b/source/blender/blenkernel/BKE_action.h
index 3caf0ad2cc6..68a6be04735 100644
--- a/source/blender/blenkernel/BKE_action.h
+++ b/source/blender/blenkernel/BKE_action.h
@@ -101,6 +101,9 @@ struct bPoseChannel *verify_pose_channel(struct bPose* pose,
 /* sets constraint flags */
 void update_pose_constraint_flags(struct bPose *pose);
 
+/* clears BONE_UNKEYED flags for frame changing */
+void framechange_poses_clear_unkeyed(void);
+
 /**
  * Allocate a new bAction on the heap and copy 
  * the contents of src into it. If src is NULL NULL is returned.