修复安卓端 - 未读标记在杀掉应用再打开，标记消失的问题

Author: hanhu

standard/model/external.ts

@@ -20,6 +20,9 @@ export async function onMessageReceived(
         ext.extend_message_body.messageType == 5) {
         originMessage.ext.shouldRead = true;
         delegate.im.conversation.updateMessageExt(originMessage.messageId, originMessage.ext);
+    } else {
+        originMessage.ext.shouldRead = false;
+        delegate.im.conversation.updateMessageExt(originMessage.messageId, originMessage.ext);
     }
 
     const message = Action.Parse.get([], originMessage, originMessage);

standard/model/message.ts

@@ -25,7 +25,7 @@ export async function sendMessage(
     isSystem: boolean = false,
     autoTimestamp: boolean = true,
 ): Promise<void> {
-    ext = {...ext, innerId: message.innerId};
+    ext = {...ext, innerId: message.innerId, shouldRead: true};
     const sendEventName = [Event.Base, Event.SendMessage, imId];
     if (!delegate.model.Conversation.getOne(imId, false)) {
         await delegate.model.Conversation.loadItem(imId, chatType);