$ git clone -n https://src.fedoraproject.org/rpms/ghc-doctest.git /var/lib/mock/f40-build-777437-129359/root/chroot_tmpdir/scmroot/ghc-doctest
Cloning into '/var/lib/mock/f40-build-777437-129359/root/chroot_tmpdir/scmroot/ghc-doctest'...
$ git fetch origin aa5cb6d17d8456a84336277e0eb8c874d44db199:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-doctest
 * [new ref]         aa5cb6d17d8456a84336277e0eb8c874d44db199 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa5cb6d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild