The default [devfsrules_jail_vnet=5] includes devfsrules_jail, however include recursion is not something that exists.
I believe the intention was to have all rules of ruleset 4 expanded, including the included rules.
So it should read like this:
add include $devfsrules_hide_all
add include $devfsrules_unhide_basic
add include $devfsrules_unhide_login
add include $devfsrules_jail
add path pf unhide