API call Actions.getPageUrls date range error

I have a problem with the API call of Actions.getPageUrls. When I call:


I get this error:

{"result":"error", "message":"La date '2013-09-05' ne correspond pas au format suivant :  'lastN', 'previousN', 'YYYY-MM-DD,YYYY-MM-DD'."}

But with other valid values of idSubtable, for example idSubtable=303 I get the expected result:


And for invalid values of idSubtable, for example idSubtable=30399, I also get the expected empty result:


Any idea? Is it a bug in Piwik?

It may be a bug, can you reproduce this problem on a new piwik website ?