Didn't realize my original message got cut off ...
Anyway it should be:
So I replied to a message and the message in question now read:
You have forwarded or responded to this message.
However you can't see what you wrote at all. It's really hard to keep track of what you wrote.
I think your reply should show up just like in a regular thread and/or response sent to sent item (it's not there I checked).
Lastly yes this shouldn't be a priority but it would be nice to see this fixed if it's a simple fix.