$ git clone -n https://src.fedoraproject.org/rpms/perl-Class-Factory-Util.git /var/lib/mock/f45-build-22378-591/root/chroot_tmpdir/scmroot/perl-Class-Factory-Util
Cloning into '/var/lib/mock/f45-build-22378-591/root/chroot_tmpdir/scmroot/perl-Class-Factory-Util'...
$ git fetch origin 2786065dfad8707b1433688987eb89a065073ae2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Class-Factory-Util
 * [new ref]         2786065dfad8707b1433688987eb89a065073ae2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2786065 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild