Actually quite a few bugs have been fixed from the original ZCoin code, including more in the upcoming release.
The GIT repository history is not telling the same. The only more or less considerably sized commit was done 16 minutes ago. The rest were one-liners, related only to founders reward and version bump.
If you indeed made some bug fixes in the original commit, then why didn't you fork your repository from the original ZCoin one, so people could see the difference (if any). Creating an independent repository instead of cloning the original project is a bad practice, mostly aimed at hiding something.
There were quite a few changes in the initial commit. You can compare the initial commit with ZCoin.