Empty symbol concatenated

What does the reader do with symbol-name||?

some-scheme> (define name "the value")
some-scheme> name||

• Treats the whole sequence as a single symbol name||:

Biwa, Chibi, Guile, Lips, MIT, Sagittarius, Tinyscheme, Unsyntax

• Concatenate name with || and returns the value of name:

Chicken, Chez, Loko, Kawa, Racket, STklos

• Read the sequence as if there were a space between name and ||:

Bigloo, Gambit, Gauche

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