quote and dequoteBash completion /usr/share/bash-completion/bash_completion reserves
quote, dequote, and quote_readline. I discovered this while
working on my quote CmdBox command module (which produces a quote
binary that was being ignored). For an intents and purposes this is a
bug because it effectively adds a very key reserved keyword for
Bash shell completion to work (_parse_help and _parse_usage) without
any documentation at all. Unsetting or overriding it will break
completion. That’s a fucking bug.
To get around it (rather than fight with the Bash team about the nature
of this bug) I just changed my command to quot, and let’s face it, no
one wants to type that final e anyway. ;)