take on account priorities, which are <= 0

src/common/contacts.py

@@ -324,8 +324,11 @@ class Contacts:
 					max_order = data_['order']
 		contact = self.get_contact_with_highest_priority(account, jid)
 		score = (max_order - order)*10000
-		if not common.gajim.jid_is_transport(jid):
-			score += contact.priority*10
+		
+		if common.gajim.get_transport_name_from_jid(jid) is None:
+			score += 10
+			if contact.priority > 0:
+				score += contact.priority * 10
 		score += ['not in roster', 'error', 'offline', 'invisible', 'dnd', 'xa',
 		'away', 'chat', 'online', 'requested', 'message'].index(contact.show)
 		return score