Created Unassigned: For GetUserTimeline, maximumTweets parameters doesn't work [2631]

Hello,

I have tried to limit number of fetched tweets using these methods:

GetUserTimeline(long userId, int maximumTweets = 40);
GetUserTimeline(long userId, IUserTimelineParameters userTimelineParameters);
GetUserTimeline(string userScreenName, int maximumTweets = 40);
GetUserTimeline(string userScreenName, IUserTimelineParameters userTimelineParameters);

But number of tweets that are fetched is always 200!
Is there a workaround for this?
When will this be fixed?

Kind regards,
Predrag