https://github.com/fourtytwo42/42_v0.0.1/pull/2/commits/8240cee3b90af7157de43e8ab552b6493d77c0e7
This tree was abandoned after the first release, then official tree was https://github.com/fourtytwo42/42. Mistake with unlimited supply was fixed in 3-Feb-2014 by lmangani. But in 17-Mar-2014 Soopy again made the supply unlimited. The next try to fix it was in 19-Jul-2015 (more than 1 year passed and still less than 42 coins available), when funkshelper submitted a pull request "42-coin-limit", but there were no updated wallets, so most people have not been able to support him.
The new wallet is not related with the old one, so no any issues with the pos implementation, maybe just one - ...the block reward is not big.