airblade/vim-gitgutter — pull request #209 by Z1MM32M4N (2014-11-10 19:50:10+00:00)
Title: Add support for symlink'ed files under git version control (#208)

Adds support for when a symlink file points to another file
, where is a file under Git version control.

Some notes about the modifications:

- To resolve a target link to it's source: resolve(expand())

- To keep track of buffer information (now that we don't have the
filename that's associated with that buffer anymore): use buffer ID
instead of filename.