Source view does not properly display files with mixed line endings

I have some C files with mixed line endings. They display badly in Stash's source view.

Here is an example repository I posted on Bitbucket. They display fine there:

https://bitbucket.org/jason_s/line-endings-test/src/1be669fecf3d5c4959124cc50a1d80be3f39dfb8/test1.txt?at=master
https://bitbucket.org/jason_s/line-endings-test/src/1be669fecf3d5c4959124cc50a1d80be3f39dfb8/test2.txt?at=master

but display badly in Stash. This renders line number functions like Blame ineffective.

(Yeah, I know, we shouldn't be using mixed line endings in the first place, but Stash should handle this more robustly.)