if you want to change that behaviour you have two possible entry points in the code, one is preventing the translation tagging when source is 0 in edit mode (see in the parser.php)
kama unataka mabadiliko ya kwamba tabia una pointi mbili kuingia iwezekanavyo katika kanuni, mmoja ni kuzuia tagging tafsiri wakati chanzo ni 0 katika hariri mode (kuona katika parser.php ya)