$ git clone -n https://src.fedoraproject.org/rpms/perl-Gnome2.git /var/lib/mock/f45-build-23760-599/root/chroot_tmpdir/scmroot/perl-Gnome2
Cloning into '/var/lib/mock/f45-build-23760-599/root/chroot_tmpdir/scmroot/perl-Gnome2'...
$ git fetch origin a52367ace7921306a48b7ebfbf917b9cf68fbdfe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Gnome2
 * [new ref]         a52367ace7921306a48b7ebfbf917b9cf68fbdfe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a52367a Perl 5.44 rebuild