$ git clone -n https://src.fedoraproject.org/rpms/perl-Schedule-Cron.git /var/lib/mock/f45-build-26171-616/root/chroot_tmpdir/scmroot/perl-Schedule-Cron
Cloning into '/var/lib/mock/f45-build-26171-616/root/chroot_tmpdir/scmroot/perl-Schedule-Cron'...
$ git fetch origin 1cc7a4dd95c189c963603ab6ed081c2e523ca9f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Schedule-Cron
 * [new ref]         1cc7a4dd95c189c963603ab6ed081c2e523ca9f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1cc7a4d 1.07 release