TOptional< TextFilterExpressionParser::FTextToken > CompiledFilterSingleBasicStringTextToken
If there is only one token that is basic string it will be stored here to avoid recompile per item compared.
TOptional< TextFilterExpressionParser::FTextToken > CompiledFilterSingleBasicStringTextToken
If there is only one token that is basic string it will be stored here to avoid recompile per item compared.