A client SHOULD NOT send the fragment part of a URL to the server?

[Petite Abeille]

"A client SHOULD NOT send the fragment part of a URL to the server."
-- Sean Conner, Resource request format for Gemini' states, circa 2019-08-01
https://portal.mozz.us/gemini/gemini.conman.org/gRFC/0002

Such restriction is not reflected in the spec itself.

At the same time, the spec mentions header lines as "machine-readable representation of the internal structure of the document".

Could one reflect such structure using fragments?

E.g.:

gemini://gemini.circumlunar.space/docs/specification.gm#5.4+Core+line+types

Part of the gemini canon?