[ic] time and convert_date oddities

[Paul Jordan]

I was noticing some differences of using "%X" in the below, and found an 
additional head scratcher.

Test code:
[time fmt="%X"]<br />
[convert_date fmt="%X"][time fmt="%Y-%m-%d %H:%M:%S"][/convert_date]
[convert_date fmt="%X"]2011-08-07 12:34:56[/convert_date]

Produces this:
02:51:44
02:51:00 AM
12:34:00 PM

The first thing I notice is that AM/PM is added when using convert_date, and 
the docs don't show %X as outputting this. The second thing I notice is that 
the seconds place is always 00 for convert_date. I don't need the seconds in 
this case, I'm just trying to be complete in my observations.

Are these expected, bugs, or am I misunderstanding some usage?

Paul