code: def init_selection(self):
          
          si = self.shotverbrws.selected_indexes(0)
          if si:
              self.shot_ver_sel_changed(si[0])
          else:
              self.shot_ver_sel_changed(QtCore.QModelIndex())
          ai = self.assetverbrws.selected_indexes(0)
          if ai:
              self.asset_ver_sel_changed(ai[0])
          else:
              self.asset_ver_sel_changed(QtCore.QModelIndex())
docs: Call selection changed in the beginning, so signals get emitted once
  
          Emit shot_taskfile_sel_changed signal and asset_taskfile_sel_changed.
  
          :returns: None
          :raises: None