$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-PasswdMD5.git /var/lib/mock/f41-build-1250877-22988/root/chroot_tmpdir/scmroot/perl-Crypt-PasswdMD5
Cloning into '/var/lib/mock/f41-build-1250877-22988/root/chroot_tmpdir/scmroot/perl-Crypt-PasswdMD5'...
$ git fetch origin 9bcd9430cc6fe511e0171897c6e44b8772fc2416:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-PasswdMD5
 * [new ref]         9bcd9430cc6fe511e0171897c6e44b8772fc2416 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9bcd943 Eliminate use of obsolete %patchN syntax (#2283636)