MonoDevelop 4.0.1 auto (de)formatting

I'm finding that MonoDevelop 4.0.1 is basically unusable, just about every time I add a for statement or if statement or paste code it seems to double up tabs and creates a huge mess of my C# file.

I've seen many other posts about this but no solution. I checked their database and it is a known and fixed issue (they said to upgrade to 4.0.9, and I know they have version 5 out, but I don't think those are compatible with Unity ?

What are other people doing in order to be able to code in C# on the Mac?

Thanks!