$ git clone -n https://src.fedoraproject.org/rpms/ghc-http-client-restricted.git /var/lib/mock/f40-build-777381-129353/root/chroot_tmpdir/scmroot/ghc-http-client-restricted
Cloning into '/var/lib/mock/f40-build-777381-129353/root/chroot_tmpdir/scmroot/ghc-http-client-restricted'...
$ git fetch origin 21a7dce137a85b5eb2535e93bb68109867c4e0c2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-http-client-restricted
 * [new ref]         21a7dce137a85b5eb2535e93bb68109867c4e0c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21a7dce Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild