$ git clone -n https://src.fedoraproject.org/rpms/mariadb-java-client.git /var/lib/mock/f41-build-1104806-20066/root/chroot_tmpdir/scmroot/mariadb-java-client
Cloning into '/var/lib/mock/f41-build-1104806-20066/root/chroot_tmpdir/scmroot/mariadb-java-client'...
$ git fetch origin 39499a81baaa2bdb770c22c4798b0664e6be60d7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mariadb-java-client
 * [new ref]         39499a81baaa2bdb770c22c4798b0664e6be60d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39499a8 Rebuilt for java-21-openjdk as system jdk