Civil District Judge Kern Reese has ruled for The Lens twice; the city has appealed both decisions.
Gary Robichaux led six-school network until special-ed and cheating scandal came to light.
The former principal of the school, Mary Laurie, was fired after probe's completion.
Divisions over this spring's union drive resurfaced in Saturday's meeting.
State law says the public is entitled to observe how government bodies make decisions. But Lusher board members privately discussed how to respond to the union, using a boardwide email group. And they set up several private meetings that appear to have circumvented the Open Meetings Law.
Three months later, we haven't received emails from CEO Kathy Riedlinger.
City missed legally required deadlines, failed to provide timelines on responses.
Organizers say handful of teachers involved in union activities weren't asked to return.