Haskell bundle's do expression snippet causes TextMate to hangs

[yuuq]

Steps to reproduce:

1. Create a new untitled empty document (⌘N)
2. Change language grammer to Haskell (⌃⌥⇧H)
3. Type "do"
4. Press tab key to expand snippet (⇥)
5. Press delete key (⌫)
6. Press tab key (⇥), then TextMate is hangs

Expected result:
Insert tab depend on tab setteings (e.g. tab size and soft tabs settings)

Actual result:
TextMate is hangs

Environment:
OS X version: 10.9.4
TextMate version: 2.0-alpha.9561
Language grammer: Haskell

Spin report:
https://gist.github.com/yuuq/dc462a22dedf8bfc78b8