Dragging over empty results table crashes Undertext

[GoogleCodeExporter]

What steps will reproduce the problem?
1. open Undertext
2. drag movie file over results table

What is the expected output? What do you see instead?
Should indicate that it could be dropped but crashes instead. Results table has 
to be empty for 
the crash to occur.

Crash log:

2010-04-28 23:11:45.023 Undertext[8934:a0f] 
ResultsTableController#outlineView_isItemExpandable: NoMethodError: undefined 
method 
`isExpandable' for nil:NilClass
    /Users/johan_lunds/Documents/Temp/Documents/Projekt/Undertext/build/Debug/Underte
xt.app/Contents/Resources/ResultsTableController.rb:131:in 
`outlineView_isItemExpandable'
    /Users/johan_lunds/Documents/Temp/Documents/Projekt/Undertext/build/Debug/Underte
xt.app/Contents/Resources/rb_main.rb:23:in `NSApplicationMain'
    /Users/johan_lunds/Documents/Temp/Documents/Projekt/Undertext/build/Debug/Underte
xt.app/Contents/Resources/rb_main.rb:23
/Users/johan_lunds/Documents/Temp/Documents/Projekt/Undertext/build/Debug/Undert
ext.ap
p/Contents/Resources/ResultsTableController.rb:131:in 
`outlineView_isItemExpandable': 
undefined method `isExpandable' for nil:NilClass (NoMethodError)
    from 
/Users/johan_lunds/Documents/Temp/Documents/Projekt/Undertext/build/Debug/Undert
ext.ap
p/Contents/Resources/rb_main.rb:23:in `NSApplicationMain'
    from 
/Users/johan_lunds/Documents/Temp/Documents/Projekt/Undertext/build/Debug/Undert
ext.ap
p/Contents/Resources/rb_main.rb:23

Original issue reported on code.google.com by johanlu...@gmail.com on 28 Apr 2010 at 9:16