$ git clone -n https://src.fedoraproject.org/rpms/fluent-bit.git /var/lib/mock/f40-build-801674-143845/root/chroot_tmpdir/scmroot/fluent-bit
Cloning into '/var/lib/mock/f40-build-801674-143845/root/chroot_tmpdir/scmroot/fluent-bit'...
$ git fetch origin 4042e24879b76503561d40d1cc7edddeb30ff44b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fluent-bit
 * [new ref]         4042e24879b76503561d40d1cc7edddeb30ff44b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4042e24 Disable tcp_tls Flaky failing test in Koji only