$ git clone -n https://src.fedoraproject.org/rpms/rust-scrypt.git /var/lib/mock/f40-build-2657963-66917/root/chroot_tmpdir/scmroot/rust-scrypt
Cloning into '/var/lib/mock/f40-build-2657963-66917/root/chroot_tmpdir/scmroot/rust-scrypt'...
$ git fetch origin bef0e9b41bdaa84ef4f993cfa28930826f234a29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-scrypt
 * [new ref]         bef0e9b41bdaa84ef4f993cfa28930826f234a29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bef0e9b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild