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f5df6695c0
The (faulty) detection of recursive Aliases was removed in a656fd06930541103c70297825d6f5f5956ecc45, claiming that "our nesting limit will catch issues now." However, nested Aliases weren't actually increasing the nesting level. Actually increasing the nesting level when an alias is executed restores the intended behavior. Additionally, limiting the size of the expanded arguments to an alias prevents exponential growth of memory usage for certain malicious inputs/aliases. Signed-off-by: James McCoy <vega.james@gmail.com>
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