$ git clone -n https://src.fedoraproject.org/rpms/ghc-hxt.git /var/lib/mock/f40-build-776928-129159/root/chroot_tmpdir/scmroot/ghc-hxt
Cloning into '/var/lib/mock/f40-build-776928-129159/root/chroot_tmpdir/scmroot/ghc-hxt'...
$ git fetch origin b8ffb27a412cd2936f0efe13fc252fef7dc0d7ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hxt
 * [new ref]         b8ffb27a412cd2936f0efe13fc252fef7dc0d7ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8ffb27 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild