Tsearch2 Causing Backend Crash

After applying the patches supplied so far and also trying the lastest 
stable tar.gz for tsearch2 ( downloaded 24th of september)

I am still experiencing the same issue as previously described:
I try to do a 

SELECT to_tsvector( 'default', 'some text' )

The backend crashes.

SELECT to_tsvector( 'default', <string of whitespace> )
does not crash

Any more advice or suggestions?

Thanks!

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