$ git clone -n https://src.fedoraproject.org/rpms/golang-github-pbnjay-memory.git /var/lib/mock/f45-build-12301-440/root/chroot_tmpdir/scmroot/golang-github-pbnjay-memory
Cloning into '/var/lib/mock/f45-build-12301-440/root/chroot_tmpdir/scmroot/golang-github-pbnjay-memory'...
$ git fetch origin efb782bf84e7625b6ba7016f6daaf8b03ddfac42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-pbnjay-memory
 * [new ref]         efb782bf84e7625b6ba7016f6daaf8b03ddfac42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at efb782b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild