$ git clone -n https://src.fedoraproject.org/forks/mkoncek/rpms/mariadb-java-client.git /var/lib/mock/f43-build-59168792-6571451/root/chroot_tmpdir/scmroot/mariadb-java-client
Cloning into '/var/lib/mock/f43-build-59168792-6571451/root/chroot_tmpdir/scmroot/mariadb-java-client'...
$ git fetch origin afb57fe4399b43139626e287c994cec7c9bb9e9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/mkoncek/rpms/mariadb-java-client
 * [new ref]         afb57fe4399b43139626e287c994cec7c9bb9e9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at afb57fe Update to upstream version 3.5.3