$ git clone -n https://src.fedoraproject.org/rpms/perl-Coro.git /var/lib/mock/f45-build-22581-593/root/chroot_tmpdir/scmroot/perl-Coro
Cloning into '/var/lib/mock/f45-build-22581-593/root/chroot_tmpdir/scmroot/perl-Coro'...
$ git fetch origin cf0696d0d8704241bd2a4309a4b8f71486d0718f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Coro
 * [new ref]         cf0696d0d8704241bd2a4309a4b8f71486d0718f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf0696d Perl 5.44 rebuild