debug build crashes on long strings in snippets

[githubmanticore]

Assertion about token len < 256 is hit for the text like

Montpellier recherche model recherche model Contactez maintenant 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 Message Envoyer 

(for query like SELECT Id, SNIPPET(body, QUERY()) FROM long WHERE MATCH('message'), where this long line is content of 'body' field.)

Since content of stored fields is out of our control, we should process these long 'token' also, without any assertion fails.

[sanikolaev]

Fixed in 0169791