Fixed bug #10934 - Performance issues with large numbers of subcategories and products

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/commerce/trunk@81692 735d13b6-9817-0410-8766-e36946ffe9aa
Fixed issue #40732 - prices get lost in BE

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/commerce/trunk@81697 735d13b6-9817-0410-8766-e36946ffe9aa