$ git clone -n https://src.fedoraproject.org/rpms/bcachefs-tools.git /var/lib/mock/f41-build-side-1-2749738-31005/root/chroot_tmpdir/scmroot/bcachefs-tools
Cloning into '/var/lib/mock/f41-build-side-1-2749738-31005/root/chroot_tmpdir/scmroot/bcachefs-tools'...
$ git fetch origin 9f3d0f0a045afea639c9a88a643367f72413bd0a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bcachefs-tools
 * [new ref]         9f3d0f0a045afea639c9a88a643367f72413bd0a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f3d0f0 Update to 1.11.0