Aidan Kehoe writes: > And on two non-vanilla invocations of mine it’s non-nil. These seem like > bugs: Easy to reproduce: (with-temp-buffer ;; let's not be visting a file (defcustom junk nil "junk custom") (assq 'junk (cadr (object-plist nil)))) => (junk custom-variable) Easy to prevent: (with-temp-buffer (defgroup trash-group nil "just for laughs") (defcustom trash nil "trash custom") (cons (assq 'trash (cadr (object-plist nil))) (assq 'trash (cadr (object-plist 'trash-group))))) => (nil trash custom-variable) Question: Should we *require* that customizations be in a group (ie, defcustom barfs if there's no :group argument and (custom-current-group) is nil)? Or should we force `custom-current-group' to return something global like 'xemacs rather than nil? Or should we allow anti-social customizations, that avoid all groups? I think option 2 is probably safest and least invasive, although the pedant in me hankers after option 1. Option 3 strikes me as rather risky given the general fragility of customize.

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