$ git clone -n https://src.fedoraproject.org/rpms/golang-uber-fx.git /var/lib/mock/f45-build-12773-443/root/chroot_tmpdir/scmroot/golang-uber-fx
Cloning into '/var/lib/mock/f45-build-12773-443/root/chroot_tmpdir/scmroot/golang-uber-fx'...
$ git fetch origin 385409f0fbfa2aa745da3c3786fc2487e1dc8896:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-uber-fx
 * [new ref]         385409f0fbfa2aa745da3c3786fc2487e1dc8896 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 385409f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild