$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-MockTime.git /var/lib/mock/f45-build-26774-619/root/chroot_tmpdir/scmroot/perl-Test-MockTime
Cloning into '/var/lib/mock/f45-build-26774-619/root/chroot_tmpdir/scmroot/perl-Test-MockTime'...
$ git fetch origin 002b619280bc688e985259682d44f372562146ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-MockTime
 * [new ref]         002b619280bc688e985259682d44f372562146ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 002b619 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild