$ git clone -n https://src.fedoraproject.org/rpms/rust-nb-connect.git /var/lib/mock/f40-build-2653132-66898/root/chroot_tmpdir/scmroot/rust-nb-connect
Cloning into '/var/lib/mock/f40-build-2653132-66898/root/chroot_tmpdir/scmroot/rust-nb-connect'...
$ git fetch origin a7e9c2a1e0863b46d696fe69917d7268023f8a69:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nb-connect
 * [new ref]         a7e9c2a1e0863b46d696fe69917d7268023f8a69 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7e9c2a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild