$ git clone -n https://src.fedoraproject.org/rpms/golang-github-revel-pathtree.git /var/lib/mock/f45-build-12440-442/root/chroot_tmpdir/scmroot/golang-github-revel-pathtree
Cloning into '/var/lib/mock/f45-build-12440-442/root/chroot_tmpdir/scmroot/golang-github-revel-pathtree'...
$ git fetch origin 6b261c0f4cc6713faa07a649d688c19077f5798d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-revel-pathtree
 * [new ref]         6b261c0f4cc6713faa07a649d688c19077f5798d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b261c0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild