Invisible on XMPP not working

[Frank Lanitz]

Hi guys,

Last days a did play around with invisible function of XMPP and it
appears I don't get it up running to work with Pidgin. My accounts still
keeps on being visible and online as before.

I'm using the latest official version of 2.7.x tree but a friend of mine
also did had issues on 2.6.x ... Is there something I need to activate
before using or something I need to check before?

Cheers,
Frank