Ironruby core - Feb 2010 - IronRuby 1.0rc2 - crash calling =~ on clr string

Ouch. Here''s a repro

PS C:\dev\test> ir
IronRuby 0.9.4.0 on .NET 2.0.50727.4927
Copyright (c) Microsoft Corporation. All rights reserved.
>>> "hello".to_clr_string =~ "hello"
Process is terminated due to StackOverflowException.

The windows appcrash dialog pops up: Here''s what it says if
it''s at all
useful


Problem signature:
  Problem Event Name: APPCRASH
  Application Name: ir.exe
  Application Version: 0.9.4.0
  Application Timestamp: 4b706fe1
  Fault Module Name: KERNELBASE.dll
  Fault Module Version: 6.1.7600.16385
  Fault Module Timestamp: 4a5bdbdf
  Exception Code: e053534f
  Exception Offset: 0000b727
  OS Version: 6.1.7600.2.0.0.256.48
  Locale ID: 5129
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