test case fixes
diff --git a/erpnext/controllers/buying_controller.py b/erpnext/controllers/buying_controller.py
index d4e69cf..9867973 100644
--- a/erpnext/controllers/buying_controller.py
+++ b/erpnext/controllers/buying_controller.py
@@ -279,7 +279,7 @@
 
 	def set_qty_as_per_stock_uom(self):
 		for d in self.get("items"):
-			if d.meta.get_field("stock_qty") and not d.stock_qty:
+			if d.meta.get_field("stock_qty"):
 				if not d.conversion_factor:
 					frappe.throw(_("Row {0}: Conversion Factor is mandatory").format(d.idx))
 				d.stock_qty = flt(d.qty) * flt(d.conversion_factor)