修复发送单聊消息toUserId包含发件人时获取的会话列表错误

core/src/main/java/com/wecloud/im/service/impl/ImMessageServiceImpl.java

@@ -928,6 +928,9 @@ public class ImMessageServiceImpl extends BaseServiceImpl<ImMessageMapper, ImMes
                                              Map<Long, ImConversation> conversationMapGroupById,
                                              Map<Long, List<ImConversationMembers>> conMembersMapGroupByConId) {
 
+        // 排除发件人自己
+        toUserIdList = toUserIdList.stream().filter(userId -> !sender.getClientId().equals(userId)).collect(Collectors.toList());
+
         Long appId = application.getId();
         // 获取收件人信息
         List<ImClient> receiverList = imClientService.list(Wrappers.<ImClient>lambdaQuery().eq(ImClient::getFkAppid,