$ git clone -n https://src.fedoraproject.org/rpms/golang-x-tools.git /var/lib/mock/f41-build-850848-165662/root/chroot_tmpdir/scmroot/golang-x-tools
Cloning into '/var/lib/mock/f41-build-850848-165662/root/chroot_tmpdir/scmroot/golang-x-tools'...
$ git fetch origin 92187f3ede43b38c2ae90c5c4e70e0d7234ad25d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-tools
 * [new ref]         92187f3ede43b38c2ae90c5c4e70e0d7234ad25d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 92187f3 Fix variable and tests