Reset receiver list always on create receiver list button
diff --git a/erpnext/selling/doctype/sms_center/sms_center.py b/erpnext/selling/doctype/sms_center/sms_center.py
index d53a20e..fd3aec5 100644
--- a/erpnext/selling/doctype/sms_center/sms_center.py
+++ b/erpnext/selling/doctype/sms_center/sms_center.py
@@ -51,7 +51,7 @@
 
 		for d in rec:
 			rec_list += d[0] + ' - ' + d[1] + '\n'
-			self.receiver_list = rec_list
+		self.receiver_list = rec_list
 
 	def get_receiver_nos(self):
 		receiver_nos = []