The prarameter productCategoryId is lost when click Restore to Default

[hellozhangwei]

This bug can be reproduced by the following steps.

1. Go to https://demo.moqui.org/qapps/marble/Catalog/Category/EditProducts?productCategoryId=DEMO_CLOTHING
2. Click Find Options and input 'T-Shirt' in Name text box
3. Click Find button.
4. Click Restore to Default, the prarameter productCategoryId is lost