$ git clone -n https://src.fedoraproject.org/rpms/golang-x-lint.git /var/lib/mock/f45-build-12808-443/root/chroot_tmpdir/scmroot/golang-x-lint
Cloning into '/var/lib/mock/f45-build-12808-443/root/chroot_tmpdir/scmroot/golang-x-lint'...
$ git fetch origin cecd8db4909c10b81a89970a41c4746d6ed5b5ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-lint
 * [new ref]         cecd8db4909c10b81a89970a41c4746d6ed5b5ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cecd8db rebuild