Comment 5 for bug 1118564

I do not agree that this is a duplicate of #1081044. "Uncaught TypeError: Cannot read property 'length' of undefined" is a very generic error and represents several errors on the web client.

The specific bug reported here is related to the relativedelta function call of the Javascript Python interpreter (/addons/web/static/src/js/pyeval.js ). It could be related to the more generic problem of the Javascript Python interpreter not supporting function calls with named arguments - but that does not seem the problem of #1081044 to me...