$ git clone -n https://src.fedoraproject.org/rpms/rust-build-context.git /var/lib/mock/f40-build-2324148-58758/root/chroot_tmpdir/scmroot/rust-build-context
Cloning into '/var/lib/mock/f40-build-2324148-58758/root/chroot_tmpdir/scmroot/rust-build-context'...
$ git fetch origin 7619eb10aecb57d098bc41fb1ec903b21bfe66cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-build-context
 * [new ref]         7619eb10aecb57d098bc41fb1ec903b21bfe66cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7619eb1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild