kchmck/vim-coffee-script — pull request #151 by crsven (2013-10-29 23:02:49+00:00)
Title: Only unlet b:did_indent when it is set.

This resolves the vim startup error I'm receiving after updating this plugin:
```
Error detected while processing ~/.vim/bundle/vim-coffee-script/after/indent/html.vim:
line 7:
E108: No such variable: "b:did_indent"
```