#NEWLINE# def _merge_known_related_objects( self , other ) : #NEWLINE# #INDENT# '\n        Keep track of all known related objects from either QuerySet instance.\n        ' #NEWLINE# for ( field , objects ) in other . _known_related_objects . items ( ) : #NEWLINE# #INDENT# self . _known_related_objects . setdefault ( field , { #NEWLINE# #INDENT# #NEWLINE# #UNINDENT# } ) . update ( self )