$ git clone -n https://src.fedoraproject.org/rpms/golang-github-alecthomas-kong.git /var/lib/mock/f45-build-11706-434/root/chroot_tmpdir/scmroot/golang-github-alecthomas-kong
Cloning into '/var/lib/mock/f45-build-11706-434/root/chroot_tmpdir/scmroot/golang-github-alecthomas-kong'...
$ git fetch origin 43af86c1c46be80a8c6f7c9559392c3fd2deb2ff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-alecthomas-kong
 * [new ref]         43af86c1c46be80a8c6f7c9559392c3fd2deb2ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43af86c Update to 1.16.1 upstream release