修复陌生人场景下重复创建会话的bug

core/src/main/resources/mapper/ImConversationMapper.xml

@@ -87,7 +87,7 @@
                             on con.id = mem1.fk_conversation_id and mem1.fk_client_id = #{clientId1}
                  inner join im_conversation_members mem2
                             on con.id = mem2.fk_conversation_id and mem2.fk_client_id = #{clientId2}
-        where con.chat_type = 1
+        where con.chat_type in (1, 5)
           and con.member_count = 2
         order by con.id asc
         LIMIT 1