message: [Dashboard] Allow Superset Alpha, Gamma users to save dashboard as a copy
diff: @@ -2049,9 +2049,9 @@ class Superset(BaseSupersetView):
  pass
  dashboard(dashboard_id=dash.id)
  - dash_edit_perm = check_ownership(dash, raise_if_false=False)
  - dash_save_perm = \
  - dash_edit_perm and security_manager.can_access('can_save_dash', 'Superset')
  + dash_edit_perm = check_ownership(dash, raise_if_false=False) and \
  + security_manager.can_access('can_save_dash', 'Superset')
  + dash_save_perm = security_manager.can_access('can_save_dash', 'Superset')
  superset_can_explore = security_manager.can_access('can_explore', 'Superset')
  slice_can_edit = security_manager.can_access('can_edit', 'SliceModelView')
  