$ git clone -n https://src.fedoraproject.org/rpms/ghostscript.git /var/lib/mock/f42-build-side-1-3569150-46746/root/chroot_tmpdir/scmroot/ghostscript
Cloning into '/var/lib/mock/f42-build-side-1-3569150-46746/root/chroot_tmpdir/scmroot/ghostscript'...
$ git fetch origin f2e54de211fdacd9a5a38d3042abb1db13ea0e24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghostscript
 * [new ref]         f2e54de211fdacd9a5a38d3042abb1db13ea0e24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2e54de rename tools-fonts to tools-fontutils to comply with font guidelines (fedora#2372646)