$ git clone -n https://src.fedoraproject.org/rpms/golang-uber-config.git /var/lib/mock/f45-build-12775-443/root/chroot_tmpdir/scmroot/golang-uber-config
Cloning into '/var/lib/mock/f45-build-12775-443/root/chroot_tmpdir/scmroot/golang-uber-config'...
$ git fetch origin e0086f74237d5904907a4b3b17d5fcbb39fd4d3a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-uber-config
 * [new ref]         e0086f74237d5904907a4b3b17d5fcbb39fd4d3a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0086f7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild