Wrong pageIndex number when scrolling backwards

[jobloxfire]

The pageIndex number in
(void)infiniteGridView:(IAInfiniteGridView *)gridView didScrollToPage:(NSInteger)pageIndex
logs in decrementing number but sometimes the pageIndex logs in non succeeding number then continues to decrement again. Especially when circular is enabled.
No problem in incrementing pageIndex.

Btw, nice control. :D