$ git clone -n https://src.fedoraproject.org/rpms/mysql8.0.git /var/lib/mock/f41-build-816798-150414/root/chroot_tmpdir/scmroot/mysql8.0
Cloning into '/var/lib/mock/f41-build-816798-150414/root/chroot_tmpdir/scmroot/mysql8.0'...
$ git fetch origin e8a0d90f0db48b9af8e15dd315f6c0db5ab71a04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mysql8.0
 * [new ref]         e8a0d90f0db48b9af8e15dd315f6c0db5ab71a04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8a0d90 Update skipped tests list for ppc64le