$ git clone -n https://src.fedoraproject.org/rpms/golang-x-tools.git /var/lib/mock/f40-build-2158760-50939/root/chroot_tmpdir/scmroot/golang-x-tools
Cloning into '/var/lib/mock/f40-build-2158760-50939/root/chroot_tmpdir/scmroot/golang-x-tools'...
$ git fetch origin 170bcb4342398faf6d34b69babfa26fd6e3f0d0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-tools
 * [new ref]         170bcb4342398faf6d34b69babfa26fd6e3f0d0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 170bcb4 reenable tests (previous build as bootstrap)