Unable to create Minium Demo site due to DDMFormImporter validation errors

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.3 FP1, 7.4 CE GA1, Master
• Component/s: Accelerators → Minium Demo Pack
• Labels: None
• Severity of Issue: Critical
• Git Pull Request: https://github.com/liferay-commerce/liferay-portal/pull/335
• Sprint: FlexSprint18

Steps to reproduce:

• Go to CP -> Sites
• Create Minium Demo site

Expected result:

The site creates without errors

Actual result:

The site creation throws a NullPointerException due to DDMFormImporter trying to import a malformed json file.