$ git clone -n https://src.fedoraproject.org/rpms/ghc-transformers-base.git /var/lib/mock/f40-build-776393-128831/root/chroot_tmpdir/scmroot/ghc-transformers-base
Cloning into '/var/lib/mock/f40-build-776393-128831/root/chroot_tmpdir/scmroot/ghc-transformers-base'...
$ git fetch origin bc72d0a4c161bc1ccfe248047e1e6a3db72a3608:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-transformers-base
 * [new ref]         bc72d0a4c161bc1ccfe248047e1e6a3db72a3608 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc72d0a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild