MUC: Don't advertise registration feature on host JID (fixes #1451) There is currently no mention in XEP-0045 of how or where to advertise support for registration. Advertising on the host JID may be confusable with service-wide registration, as implemented in ejabberd. A common and sensible pattern in XMPP is that a feature is advertised on the JID where the service is available.

local xpcall = xpcall;

if select(2, xpcall(function (x) return x end, function () end,  "test")) ~= "test" then
	xpcall = require"util.compat".xpcall;
end

return {
	xpcall = xpcall;
};