$ git clone -n https://src.fedoraproject.org/rpms/perl-Config-ZOMG.git /var/lib/mock/f45-build-22548-593/root/chroot_tmpdir/scmroot/perl-Config-ZOMG
Cloning into '/var/lib/mock/f45-build-22548-593/root/chroot_tmpdir/scmroot/perl-Config-ZOMG'...
$ git fetch origin 7c8c508181a6af63798fd9134bee698ed28d581e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Config-ZOMG
 * [new ref]         7c8c508181a6af63798fd9134bee698ed28d581e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c8c508 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild