Bold+italics get converted to just italics on edit

[turt2live]

Description

When using bold + italic syntax together, it will get converted to just italics on edit.

Steps to reproduce

***words*** -> edit -> _words_

_**words**_ -> edit -> _words_

What did you expect?

The original formatting would remain intact with bold and italic text.

[MadLittleMods]

I've removed when not touched because it does not seem to matter whether you add more to the message or not. The syntax in the edit draft is converted as soon as you press edit on the message.