$ git clone -n https://src.fedoraproject.org/rpms/openjfx.git /var/lib/mock/f40-build-798134-141758/root/chroot_tmpdir/scmroot/openjfx
Cloning into '/var/lib/mock/f40-build-798134-141758/root/chroot_tmpdir/scmroot/openjfx'...
$ git fetch origin 5cefd65c95c78874e192395a2b094b91d939eac3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openjfx
 * [new ref]         5cefd65c95c78874e192395a2b094b91d939eac3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cefd65 Rebuilt for java-21-openjdk as system jdk