[FIX] repair_stock_move: default repair line source location for remo…

…ve operations

With this fix, for "remove" repair lines repair location is not used as
default source location, that is preserved for "add" operations

repair_stock_move/models/repair_line.py

@@ -45,9 +45,10 @@ def create(self, vals):
             res.move_id = move
         return res
 
-    @api.onchange("product_id")
-    def _onchange_location(self):
-        if self.state == "draft":
+    @api.onchange("type")
+    def onchange_operation_type(self):
+        super().onchange_operation_type()
+        if self.state == "draft" and self.type == "add":
             self.location_id = self.repair_id.location_id
 
     # TODO: write qty - update stock move.