$ git clone -n https://src.fedoraproject.org/rpms/golang-github-nicksnyder-i18n-2.git /var/lib/mock/f40-build-2236485-53513/root/chroot_tmpdir/scmroot/golang-github-nicksnyder-i18n-2
Cloning into '/var/lib/mock/f40-build-2236485-53513/root/chroot_tmpdir/scmroot/golang-github-nicksnyder-i18n-2'...
$ git fetch origin 7425e26dbf41018885e99f7030d246c7c88a2be1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-nicksnyder-i18n-2
 * [new ref]         7425e26dbf41018885e99f7030d246c7c88a2be1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7425e26 Remove deprecated %patchN syntax