$ git clone -n https://src.fedoraproject.org/rpms/volume_key.git /var/lib/mock/f40-build-794373-139514/root/chroot_tmpdir/scmroot/volume_key
Cloning into '/var/lib/mock/f40-build-794373-139514/root/chroot_tmpdir/scmroot/volume_key'...
$ git fetch origin 6c794a95956dee4b4afa57321d3eeac754604844:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/volume_key
 * [new ref]         6c794a95956dee4b4afa57321d3eeac754604844 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c794a9 Fix build with Python 3.12