$ git clone -n https://src.fedoraproject.org/rpms/ghc-http-directory.git /var/lib/mock/f40-build-777384-129353/root/chroot_tmpdir/scmroot/ghc-http-directory
Cloning into '/var/lib/mock/f40-build-777384-129353/root/chroot_tmpdir/scmroot/ghc-http-directory'...
$ git fetch origin 629b61f157fff89f47432f611d47675ca1b79e7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-http-directory
 * [new ref]         629b61f157fff89f47432f611d47675ca1b79e7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 629b61f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild