[O] repeater not working?

[Alan Schmitt]

Hello,

I'm starting to play with repeaters, and I cannot make them work. Here
is a sample of a small file I have:

*** Archive Mail [2/2]
    SCHEDULED: <2012-09-01 Sat +1m>
**** DONE Read and archive all mail (orgmode, Sent)
     CLOSED: [2012-09-01 Sat 15:03]
**** DONE Create monthly folder and move mail there
     CLOSED: [2012-09-01 Sat 15:06]

As you can see, subtasks are done, and I have set a repeater for the
scheduling for one month. If I go on the first line and close the entry,
I get the following:

*** DONE Archive Mail [2/2]
    CLOSED: [2012-09-01 Sat 15:13] SCHEDULED: <2012-09-01 Sat +1m>
**** DONE Read and archive all mail (orgmode, Sent)
     CLOSED: [2012-09-01 Sat 15:03]
**** DONE Create monthly folder and move mail there
     CLOSED: [2012-09-01 Sat 15:06]

However no new entry appears scheduled for one month in the future.

Am I doing something wrong or is this a bug?

Thanks,

Alan