Fix T96347: Pose gizmo shown at wrong location with multiple objects

Regression in [0] error iterating over pose bones which only used the
active-object, also follow the same logic as edit-mode for using the
local-matrix.

[0]: d052169e7e

source/blender/editors/transform/transform_gizmo_3d.c

@@ -939,7 +939,7 @@ int ED_transform_calc_gizmo_stats(const bContext *C,
 
     for (uint ob_index = 0; ob_index < objects_len; ob_index++) {
       Object *ob_iter = objects[ob_index];
-      const bool use_mat_local = params->use_local_axis && (ob_iter != ob);
+      const bool use_mat_local = (ob_iter != ob);
       /* mislead counting bones... bah. We don't know the gizmo mode, could be mixed */
       const int mode = TFM_ROTATION;
 
@@ -951,7 +951,7 @@ int ED_transform_calc_gizmo_stats(const bContext *C,
       }
 
       /* Use channels to get stats. */
-      LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
+      LISTBASE_FOREACH (bPoseChannel *, pchan, &ob_iter->pose->chanbase) {
         if (!(pchan->bone->flag & BONE_TRANSFORM)) {
           continue;
         }