Valid links:
[[[[[[[[](test)](test)](test)](test)](test)](test)](test)]
[ [[[[[[[[[[[[[[[[[[ [](test) ]]]]]]]]]]]]]]]]]] ](test)
Invalid links:
[[[[[[[[[
[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
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