Changing the message of a mercurial Patch before commiting into the repository

When using Mercurial Queues to work with patches, you can set a message,
when starting a patch.

When you like to change the commit message, when you qfinish the patch,
you have no chance currently.

The only way is to just push the patch you like.
Prepare a file or add the text directly to the qrefresh command.
hg qrefresh -l /path/to/msgfile
or
hg qrefresh -e "my commit text"