$ git clone -n https://src.fedoraproject.org/rpms/ghc-feed.git /var/lib/mock/f40-build-777183-129287/root/chroot_tmpdir/scmroot/ghc-feed
Cloning into '/var/lib/mock/f40-build-777183-129287/root/chroot_tmpdir/scmroot/ghc-feed'...
$ git fetch origin e7a91065d57af98ad470427f5894538877f970a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-feed
 * [new ref]         e7a91065d57af98ad470427f5894538877f970a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e7a9106 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild