$ git clone -n https://src.fedoraproject.org/rpms/ghc-http2.git /var/lib/mock/f40-build-777038-129193/root/chroot_tmpdir/scmroot/ghc-http2
Cloning into '/var/lib/mock/f40-build-777038-129193/root/chroot_tmpdir/scmroot/ghc-http2'...
$ git fetch origin fefb9860e3921c0e9d8c3dc2af74c699b453bdf4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-http2
 * [new ref]         fefb9860e3921c0e9d8c3dc2af74c699b453bdf4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fefb986 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild