NSDateComponents.quater is returning 0 instead of valid quater count

NSDateComponents.quater is returning 0 instead of valid quater count.

I googled and it is said it is a bug for apple found in 2012. However, now it is 2015 and iOS 8.3, bug still exists.

for example:

unitFlags = NSQuarterCalendarUnit;

(lldb) po firstDate
2009-12-31 16:00:00 +0000

(lldb) po lastDate
2013-09-30 16:00:00 +0000

(lldb) po [gregorian components:unitFlags fromDate:firstDate toDate:lastDate options:0];
<NSDateComponents: 0x170158b50>
    Quarter: 0