Messages are redelivered

### Steps to reproduce

Not sure how to force this to reproduce. Happens sporadically but hopefully my screenshots can clue devs in.

I also experienced this on the Android app, but don't have an Android at the moment.

What I call "sticky" messages, sent messages will continually appear as "new" messages at the bottom of the chat. It doesn't happen all the time; it's seemingly random.

Here is an example of a message I sent yesterday showing up again today:


Here are some screenshots of encryped and decrypted source. Hopefully this might clue someone in.

Here is a decryption of the message from yesterday (4/10/2023):

Here is one from today (4/11/2023):

I'm trying to remove as many identifiers as possible, so please LMK if you need the room ID or something for investigation. My point, tho, is that there isn't a timestamp change or anything so I'm not sure why the app or the cloud is "redelivering" it.

### Outcome

Messages should not redeliver and should probably stay in temporal order

### Your phone model

iPhone 14 Pro Max

### Operating system version

16.3.1

### Application version

1.10.8

### Homeserver

matrix.org

### Will you send logs?

Yes