[FIX] mail: mark document as read when open

task-2387820

closes odoo/odoo#62429

X-original-commit: fe3dbfb77eb403bb6eb69cd9d667fd8baa714ff7
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

addons/mail/static/src/components/message/message.js

@@ -531,6 +531,7 @@ class Message extends Component {
     _onClickOriginThread(ev) {
         // avoid following dummy href
         ev.preventDefault();
+        this.message.markAsRead();
         this.message.originThread.open();
     }