$ git clone -n https://src.fedoraproject.org/rpms/golang-github-puerkitobio-urlesc.git /var/lib/mock/f45-build-12443-442/root/chroot_tmpdir/scmroot/golang-github-puerkitobio-urlesc
Cloning into '/var/lib/mock/f45-build-12443-442/root/chroot_tmpdir/scmroot/golang-github-puerkitobio-urlesc'...
$ git fetch origin a9b38f31fd46ef707570a6fd23d1094d93503d1b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-puerkitobio-urlesc
 * [new ref]         a9b38f31fd46ef707570a6fd23d1094d93503d1b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9b38f3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild