$ git clone -n https://src.fedoraproject.org/rpms/ghc-snap-server.git /var/lib/mock/f40-build-777141-129247/root/chroot_tmpdir/scmroot/ghc-snap-server
Cloning into '/var/lib/mock/f40-build-777141-129247/root/chroot_tmpdir/scmroot/ghc-snap-server'...
$ git fetch origin b2d614de3bb9b4dbf9fc66dd3b83fd2ae9d786cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-snap-server
 * [new ref]         b2d614de3bb9b4dbf9fc66dd3b83fd2ae9d786cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2d614d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild