1 files changed, 20 insertions, 8 deletions

diff --git a/source/blender/editors/transform/transform_convert_armature.c b/source/blender/editors/transform/transform_convert_armature.c
index 9885c8fc3a6..5cc6a62894d 100644
--- a/source/blender/editors/transform/transform_convert_armature.c
+++ b/source/blender/editors/transform/transform_convert_armature.c
@@ -349,6 +349,10 @@ static short pose_grab_with_ik_add(bPoseChannel *pchan)
               }
             }
           }
+
+          /* Return early (as in: don't actually create a temporary constraint here), since adding
+           * will take place later in add_pose_transdata() for targetless constraints. */
+          return 0;
         }
       }
 
@@ -702,10 +706,14 @@ static void add_pose_transdata(TransInfo *t, bPoseChannel *pchan, Object *ob, Tr
 
       /* Add a temporary auto IK constraint here, as we will only temporarily active this
        * targetless bone during transform. (Targetless IK constraints are treated as if they are
-       * disabled unless they are transformed). */
-      add_temporary_ik_constraint(pchan, data);
-      Main *bmain = CTX_data_main(t->context);
-      update_deg_with_temporary_ik(bmain, ob);
+       * disabled unless they are transformed).
+       * Only do this for targetless IK though, AutoIK already added a constraint in
+       * pose_grab_with_ik_add() beforehand. */
+      if ((data->flag & CONSTRAINT_IK_TEMP) == 0) {
+        add_temporary_ik_constraint(pchan, data);
+        Main *bmain = CTX_data_main(t->context);
+        update_deg_with_temporary_ik(bmain, ob);
+      }
 
       /* only object matrix correction */
       copy_m3_m3(td->mtx, omat);
@@ -1350,10 +1358,14 @@ static void pose_transform_mirror_update(TransInfo *t, TransDataContainer *tc, O
       data->flag |= CONSTRAINT_IK_AUTO;
       /* Add a temporary auto IK constraint here, as we will only temporarily active this
        * target-less bone during transform. (Target-less IK constraints are treated as if they are
-       * disabled unless they are transformed) */
-      add_temporary_ik_constraint(pchan, data);
-      Main *bmain = CTX_data_main(t->context);
-      update_deg_with_temporary_ik(bmain, ob);
+       * disabled unless they are transformed).
+       * Only do this for targetless IK though, AutoIK already added a constraint in
+       * pose_grab_with_ik_add() beforehand. */
+      if ((data->flag & CONSTRAINT_IK_TEMP) == 0) {
+        add_temporary_ik_constraint(pchan, data);
+        Main *bmain = CTX_data_main(t->context);
+        update_deg_with_temporary_ik(bmain, ob);
+      }
     }
 
     if (pid) {