$ git clone -n https://src.fedoraproject.org/rpms/rgbds.git /var/lib/mock/f41-build-856943-167839/root/chroot_tmpdir/scmroot/rgbds
Cloning into '/var/lib/mock/f41-build-856943-167839/root/chroot_tmpdir/scmroot/rgbds'...
$ git fetch origin 0e3889bec2f8a912cdc0d8431031d296da21e1f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rgbds
 * [new ref]         0e3889bec2f8a912cdc0d8431031d296da21e1f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e3889b rgbds 0.8.0