$ git clone -n https://src.fedoraproject.org/rpms/golang-github-facebookincubator-flog.git /var/lib/mock/f45-build-11910-436/root/chroot_tmpdir/scmroot/golang-github-facebookincubator-flog
Cloning into '/var/lib/mock/f45-build-11910-436/root/chroot_tmpdir/scmroot/golang-github-facebookincubator-flog'...
$ git fetch origin 8e8795c23211ddd7aea9058a59b18b01eed09d81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-facebookincubator-flog
 * [new ref]         8e8795c23211ddd7aea9058a59b18b01eed09d81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e8795c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild