It's like complaining about state being buggy since it acts differently to my ...

Indeed, that's exactly what it is. Why it could be considered buggy in the case of "/o" though is that it's poorly documented, rarely desired, and very easy to miss when debugging because it's a single character often hidden away in the middle of or at the end of an expression, instead of a full keyword at the start of statement like state.

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In reply to Re^14: Reusing a complex regexp in multiple spots, escaping the regexp by tobyink
in thread Reusing a complex regexp in multiple spots, escaping the regexp by ecm

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