$ git clone -n https://src.fedoraproject.org/rpms/ghc-vector-binary-instances.git /var/lib/mock/f40-build-776830-129097/root/chroot_tmpdir/scmroot/ghc-vector-binary-instances
Cloning into '/var/lib/mock/f40-build-776830-129097/root/chroot_tmpdir/scmroot/ghc-vector-binary-instances'...
$ git fetch origin df8604ad53f6e686fee37dfcb1156293a0d5bd79:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-vector-binary-instances
 * [new ref]         df8604ad53f6e686fee37dfcb1156293a0d5bd79 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df8604a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild