$ git clone -n https://src.fedoraproject.org/rpms/perl-PostScript.git /var/lib/mock/f41-build-1108055-20090/root/chroot_tmpdir/scmroot/perl-PostScript
Cloning into '/var/lib/mock/f41-build-1108055-20090/root/chroot_tmpdir/scmroot/perl-PostScript'...
$ git fetch origin e0c4d9d0fc02ad0425f762a421ad291e9d789250:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PostScript
 * [new ref]         e0c4d9d0fc02ad0425f762a421ad291e9d789250 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0c4d9d Eliminate use of obsolete %patchN syntax (#2283636)