I'm having an issue with draft but it happens seldomly so I don't know how to reproduce.
Sometimes when I leave the compose tab to go back to inbox or to another tab the draft tab closes itself and the message is not updated, leaving the autosaved message quite old! This results in lost data into the draft! I suspect the last message in draft is not even the latest saved.

I'm experiencing this since some time, on 7 and 8 installation, but still couldn't find the culprit!

Anyone else having the same issue?
I know I can mitigate by lowering the draft autosaving interval, tough I'd like to understand if it's really a bug and if it has been fixed.