planner-id and tasks with identical descriptions?

Dear list members,

I was hoping to use planner-id.el to allow several tasks with
identical task descriptions to co-exist peacefully.

However, IDs seem to get lost in the plan page for all but one of the
tasks.  In the day page(s), the task IDs are ok.

An example: C-c C-t My fine task <RET> <RET> <RET>
gives the following in TaskPool.muse:

#B _ My fine task {{Tasks:13}} ([[2006.10.04]])

and the following in 2006.10.04.muse:

#B _ My fine task {{Tasks:13}} ([[TaskPool]])

So far, so good.  But C-c C-t My fine task <RET> <RET> <RET>
again, gives TaskPool.muse:

#B _ My fine task {{Tasks:14}} ([[2006.10.04]])
#B _ My fine task ([[2006.10.04]])

and 2006.10.04.muse:

#B _ My fine task {{Tasks:13}} ([[TaskPool]])
#B _ My fine task {{Tasks:14}} ([[TaskPool]])

(Scheduling the tasks on different days, indicates that in the plan
page, the task id of the first task is changed, and the second task is
created without id.  In the day pages, everything is ok.)

Is this behaviour intentional, or is it a bug?

(I'm using planner 3.41 with muse 3.02.91 (3.03 RC2).)

-- 
Bjørn-Helge Mevik