Incorrect tax totals

CRM_Lineitemedit_Util::getTaxAmountTotalFromContributionID() used in the edit form submit uses CRM_Utils_Money::format() which adds thousands separators (in my case a space), total tax of 1234.56 becomes '1 234.56' and ends up written as 1. If formatting is needed perhaps CRM_Utils_Rule::cleanMoney() as is used elsewhere would be better?