qr// returns a reference blessed into the "Regexp" package (so, no, the documentation for ref is not broken). This is unfortunate since, if you make an object based on a blessed qr// ref, then everthing continues to work but there is no good way to see that the ref is a compiled regex.
I recall demerphq looking at the proper way (in C / XS) to tell that a ref is the result of qr// for use by Data::Dump::Streamer so you can use the regex() function from that module.
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