$ git clone -n https://src.fedoraproject.org/rpms/ghc-cereal.git /var/lib/mock/f40-build-775978-128547/root/chroot_tmpdir/scmroot/ghc-cereal
Cloning into '/var/lib/mock/f40-build-775978-128547/root/chroot_tmpdir/scmroot/ghc-cereal'...
$ git fetch origin 69d3b9a382cb3470703bf2c3fd28ec0a7c57c097:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cereal
 * [new ref]         69d3b9a382cb3470703bf2c3fd28ec0a7c57c097 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 69d3b9a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild