Filtering products by categories doesn't work

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 7.3
• Fix Version/s: 7.3, Master
• Component/s: None
• Labels:
  • 7.3-must
  • backend
• Severity of Issue: Major
• Git Pull Request: https://github.com/liferay-commerce/liferay-portal/pull/83
• Sprint: FlexSprint13

Filtering products by categories is at the moment not possibile due to this error:

When I fetch the categories using the endpoint

/o/headless-admin-taxonomy/v1.0/taxonomy-categories/0/taxonomy-categories

I get this set of data

So this will be the generated oData filter: 

(categoryIds/any(x:(x+eq+'39743')))

...and it will not work because the products api are expecting a number, not a string.