errors when editing files in directories that don't exist

[aaronjensen]

In a non-rails project (not sure if that matters)

"spec/features/lead_time_spec.rb" [New DIRECTORY]
Error detected while processing function RailsDetect:
line   18:
E605: Exception not caught: Rails app detection bug: 'spec/features', 'spec', '.']

Error detected while processing function <SNR>58_Activate..RailsDetect:
line   18:
E605: Exception not caught: Rails app detection bug: 'spec/foo', 'spec', '.']
Error detected while processing function <SNR>58_Activate:
line    1:
E171: Missing :endif

[tpope]

Decided to get to the bottom of another problem while ripping things apart yesterday. Keep an eye out for further issues.