$ git clone -n https://src.fedoraproject.org/rpms/phpunit8.git /var/lib/mock/f40-build-2221853-52693/root/chroot_tmpdir/scmroot/phpunit8
Cloning into '/var/lib/mock/f40-build-2221853-52693/root/chroot_tmpdir/scmroot/phpunit8'...
$ git fetch origin b314ec8f2b82601fe4c7255591d236103ca44c7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/phpunit8
 * [new ref]         b314ec8f2b82601fe4c7255591d236103ca44c7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b314ec8 update to 8.5.36 (no change)