Editing a message then choosing to edit a different message has unexpected behavior

In chat on desktop, if I go through message's menu (...) and click "Edit" to enter edit mode, the message's content appears as expected in the new message field, ready for editing. However, if I then go through another message's menu to edit that one, the text in the chat bar does not change to that other message's content to edit. If I then press enter to save my edits, it saves the contents of the new message field to the second message, even though I was editing the first message's content.

(Same problem when entering edit mode by pressing the up arrow instead of through the message menu)

**Expected behavior**: when editing a message and I choose to edit a different one before pressing the enter key or the "Cancel" button, my edits to the first message are saved/cancelled automatically (or there is a prompt, "Would you like to save your changes?"), and then the edit view now shows the second message's content in the new message field, now that I am editing the second message.

The issue names no file, test, or entry point. Start by locating the desktop chat message-editing flow and its edit-state transition; done means switching messages no longer applies the first message's text to the second and follows a defined save, cancel, or prompt behavior.

Written by the indexing model from the issue text.