Deliberate mistake: When Jar Jar gets arrested in the Gungan city, in the second shot of Jar Jar and Obi-Wan, Obi-Wan and a part of the floor behind him are reversed. This can be seen, for example, because two of the red areas on the floor have switched positions, and Obi-Wan's braid and lightsaber are on the wrong side. (00:14:00)
Deliberate mistake: When Obi-Wan is fighting Darth Maul alone, after Obi-Wan cuts Maul's lightsaber in half, they start fighting on a different side of the pit. But after Maul kicks him, a close-up of Obi-Wan shows the wall and smoke of the area that they left. The shot has been reversed as well. The easiest way to see this is to watch his braid, which is on the wrong side. (01:56:55)
Answer: No. According to the official sources, Maul was trained in the Sith ways from a very early age - it's quite likely that he himself doesn't remember his original name. Even if he does remember it, it would mean nothing to him any more - the Sith and their ways are his life - and he certainly wouldn't answer to it. According to the non-canon novel "Darth Plagueis", Darth Maul was named "Maul" by his mother before she turned him over to a young Palpatine. He didn't take a new name when he got the title "Darth."
Tailkinker ★