[TIMOB-17057] iOS: HTTPClient - responseText is not cleared between two requests

I use the HTTPClient to retrieve new tweets. Since 3.3.0, it seems that the responseText prepends the previous value to the new one, so my JSON parser crashes the app. At the first launch, here's what I get: bq. {"tweets":[{"tweet":{"text":"Our friends @felttip_band have a new single and it's a great one again ! Hooked by the whistling https://t.co/6Wt1vkVhEs","created_time":"20140507112956","guid":"463973998452170752"}}]} But if I try to refresh, here's what I get: bq. {"tweets":[{"tweet":{"text":"Our friends @felttip_band have a new single and it's a great one again ! Hooked by the whistling https://t.co/6Wt1vkVhEs","created_time":"20140507112956","guid":"463973998452170752"}}]}{"tweets":[]} As you can see, the correct response (empty array) is at the end, but the previous value is still there... This does not happen with SDK 3.2.3.