Deltatech MRP Order Merge

[gr22]

When merging MOs the merged MO has the product_quantity of the first MO instead the sum of all MOs and producing fails in mrp_product_produce.py
the lines:

@api.multi
    def check_finished_move_lots(self):
        lots = self.env['stock.move.lots']
        produce_move = self.production_id.move_finished_ids.filtered(lambda x: x.product_id == self.product_id and x.state not in ('done', 'cancel'))
        if produce_move and produce_move.product_id.tracking != 'none':

produce_move will have multiple values but produce_move.product_id.tracking will expect singleton