Warbands chat in Tempest

Today Warbands invaded Tempest chat.
As you can see in the screenshot, I'm playing in the tempest-league.
I was in /global 820, where someone wanted to start a Tora 7 chain.
He apparently was playing in the warbands-league tough.



As for the circumstances:
It happened while I was still in a PvP Zone (from a best of 7 match).
As this is shared between warbands and tempest i guess that put me in the wrong chat.