$ git clone -n https://src.fedoraproject.org/rpms/perl-DBIx-Class-DateTime-Epoch.git /var/lib/mock/f45-build-22722-593/root/chroot_tmpdir/scmroot/perl-DBIx-Class-DateTime-Epoch
Cloning into '/var/lib/mock/f45-build-22722-593/root/chroot_tmpdir/scmroot/perl-DBIx-Class-DateTime-Epoch'...
$ git fetch origin 64dc60662b3278a2a979f610a6bc464114fb12d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DBIx-Class-DateTime-Epoch
 * [new ref]         64dc60662b3278a2a979f610a6bc464114fb12d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64dc606 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild