1. Enter a file with the language `racket' 2. Try to look up the symbol `date->string' with C-c C-d C-i 3. "Looking up manual for 'date->string'... not found"
Example of file: #lang racket (date->string ) C-M-i works for completion, however. I'm using Emacs 24.3.1, Racket 5.3.3 and geiser from master.