Underscore in Project Names causes error when cloning

I am not sure if it is correct to report this as a bug and not sure if this is a known problem, but at least this is some inconsistent behaviour in the launcher (UE 4.7 P6 )

You can without a problem create a project with an underscore in its name.
But when cloning using the Launcher, you get an error that underscores are not allowed in project names.

Hi LeFxGuy,

Thank you for the report. This is a known issue that our developers are currently investigating. It is JIRA OPP-2317 in our tracking software.

Cheers,

TJ