The Maori Party bill to entrench the Maori seats

So, Hone Harawira, on his second day back in parliament, tried to submit a bill in the ballot to entrench the Maori seats. The bill is in breach of the confidence and supply agreement between the Maori Party and National, as neither party is to pursue entrenchment or removal of the Maori seats.

Harawira claims the bill he submitted was "drafted up to three years ago".

I know for a fact that the final draft -at least for a similar bill - was some time after October 2008 - and possibly well into 2009, assuming Harawira's bill was drafted properly. That's because I had a copy of the bill, but the bill while entrenching the seats, did not entrench the Maori electoral option. You can read what I wrote about that at the time here and here.

After those two posts, which I was told that all Maori Party MPs read, they decided to amend the bill to entrench the Maori Electoral Option, which was the correct thing to do. But of course National won the election and the bill was shelved. Instead Labour put one in, but, under standing orders, the bill requires a 75% parliamentary majority to pass, which means both major parties have to support it to enact it.

Now, Harawira has said the bill had been entered by "mistake". Did anyone else in the Maori Party know he put it in the ballot? If not, why not?