Dynamic Table Widget does not take Non US locales into account.

We have developed a filter using dynamic tables; the user writes in numbers which are then written to some output files. However, we experience some issues when the regional settings are not English.
If we have regional settings where the decimal is a comma, all numbers in the tables remain in the English format. Then if we change the numbers into the right format, i.e. with a comma, the numbers are not written in the file output.
So we believe there are two bugs here: one related to the regional settings, and one related to the double/real to string conversion which cannot read number with commas.