On Wed, 13 Aug 2014, Wolfgang Schuster wrote:

>
> Am 13.08.2014 um 16:39 schrieb Aditya Mahajan <adityam@umich.edu>:
>
>> numberlocation=left is the default anyways, so I don't know why the bug occurs.
>
> Could be a inheritance problem (maybe wrong parent setting) and vimtyping doesn’t fall back to the default syntaxhighlightingparameter values.

Was much simpler. A missing % before a comment!

https://github.com/adityam/filter/commit/e2608a7c8a83ec190f5e269136cb1f5e96cd10c3

This has been around for around 2 years, and I think that a change in the 
way the linenumbering mechanism works brought this out.

I will push an update to vim soon.

Aditya