Visible crew/equipment: At the parking lot, when Wonder Woman stops the car, the moving boom mic is reflected on its side.
Revealing mistake: When Wonder Woman is about to punch fake-Trevor, his stunt is noticeable: chubbier and with a blatant bulky wig.
Revealing mistake: When Wonder Woman jumps to trap the fake Wonder Woman, the stunt trampoline's moving shadow is visible.
Revealing mistake: When the fake doctor jumps out of the window, a wooden beam from the side of the set is visible on the left.
Answer: Yes, on the first episode of season 2, she is shown on the island, when another plane crash lands, she says, "They sound different from WW II". Later in the same episode a woman gathers background information on Wonder Woman. The woman says, "From 1942 to 1945, she helped the Allies win the war."