$ git clone -n https://src.fedoraproject.org/rpms/netavark.git /var/lib/mock/f39-build-1566440-37589/root/chroot_tmpdir/scmroot/netavark
Cloning into '/var/lib/mock/f39-build-1566440-37589/root/chroot_tmpdir/scmroot/netavark'...
$ git fetch origin 2f6538939feba8a5c4f342b1631333daaa120976:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/netavark
 * [new ref]         2f6538939feba8a5c4f342b1631333daaa120976 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f65389 update sources