If this still works:
It's the draw for the 2017 OFC Champions League.
They drew a team that can't be drawn in Group A, into Group B but for some reason announce it as Group A as they had previously drawn a team for Group B (two teams in total were drawn in Group B due to a mistake). They proceed to do the rest of the draw before realising a mistake has been made.
They then decide to redo half of the draw.