fix: readBy not sent when editing a message

Author: szuperaz

projects/stream-chat-angular/src/lib/channel.service.spec.ts

@@ -1365,6 +1365,8 @@ describe('ChannelService', () => {
 
   it('should update message', () => {
     const message = mockMessage();
+    // @ts-expect-error
+    delete message.readBy;
     void service.updateMessage(message);
 
     expect(mockChatClient.updateMessage).toHaveBeenCalledWith(message);
@@ -1408,11 +1410,14 @@ describe('ChannelService', () => {
     );
   });
 
-  it('should remove translation object before updating message', () => {
+  it('should remove translation object and readyBy before updating message', () => {
     const message = mockMessage();
+    // @ts-expect-error
+    delete message.readBy;
     void service.updateMessage({
       ...message,
       i18n: { en_text: 'Translation', language: 'en' },
+      readBy: [],
     });
 
     expect(mockChatClient.updateMessage).toHaveBeenCalledWith(message);

projects/stream-chat-angular/src/lib/channel.service.ts

@@ -891,10 +891,17 @@ export class ChannelService<
    * @param message Mesage to be updated
    */
   async updateMessage(message: StreamMessage<T>) {
-    let messageToUpdate = { ...message };
+    let messageToUpdate = {
+      ...message,
+    };
     delete messageToUpdate.i18n;
     if (this.beforeUpdateMessage) {
-      messageToUpdate = await this.beforeUpdateMessage(messageToUpdate);
+      messageToUpdate = await this.beforeUpdateMessage(
+        messageToUpdate as StreamMessage
+      );
+    }
+    if (messageToUpdate.readBy) {
+      delete (messageToUpdate as Omit<StreamMessage<T>, 'readBy'>).readBy;
     }
     if (message.moderation_details) {
       return this.resendMessage(message);