up_multi_store_price_form does not respect ubercart currency decimal

when i was browing through the code of up_multi i notieced that although the up_multi_store_price_form does respect reading out the uc_store_format_price_field_value function, it does not respect de decimal seperator when saving the values to the database (they need to be float).

in http://drupal.org/node/1269952 a patch is suggested to add the proper decimal to the input values of the product node itself, but up_multi does not yet revert the value to a float.