$ git clone -n https://src.fedoraproject.org/rpms/bcachefs-tools.git /var/lib/mock/f40-build-2310962-57469/root/chroot_tmpdir/scmroot/bcachefs-tools
Cloning into '/var/lib/mock/f40-build-2310962-57469/root/chroot_tmpdir/scmroot/bcachefs-tools'...
$ git fetch origin 3e18e3e1f9b030138528d90eea740b9512361803:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bcachefs-tools
 * [new ref]         3e18e3e1f9b030138528d90eea740b9512361803 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e18e3e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild