oooooooooooooooooooooooooooooooooooooooooooooong   label    ]:\n 111\n 'test'\n [[[[[[[[[[[[[[[[[[[[ this should not slow down anything ]]]]]]]]]]]]]]]]]]]]: q\n (as long as it is not referenced anywhere)\n\n [[[[[[[[[[[[[[[[[[[[]: this is not a valid reference\n",
"block-ref-nested": "[[[[[[[foo]]]]]]]\n\n[[[[[[[foo]]]]]]]: bar\n[[[[[[foo]]]]]]: bar\n[[[[[foo]]]]]: bar\n[[[[foo]]]]: bar\n[[[foo]]]: bar\n[[foo]]: bar\n[foo]: bar\n\n[*[*[*[*[foo]*]*]*]*]\n\n[*[*[*[*[foo]*]*]*]*]: bar\n[*[*[*[foo]*]*]*]: bar\