"!" not recognized as inbox in folder-hook

I'm using mutt 1.2.5i. I have this line in .muttrc: folder-hook !("!"|sentmail|subs) push \eV (i.e. I want to collapse threads in all folders other than my inbox, =sentmail, or =subs) I've tried everything: quotes, no quotes, etc., but the second bang (within the regexp) does not get understoo

"!" not recognized as inbox in folder-hook

I'm using mutt 1.2.5i. I have this line in .muttrc: folder-hook !("!"|sentmail|subs) push \eV (i.e. I want to collapse threads in all folders other than my inbox, =sentmail, or =subs) I've tried everything: quotes, no quotes, etc., but the second bang (within the regexp) does not get understoo