Empty package name not detected despite being required

[NorioKobota]

Both the package name and the package download location are defined as required fields. However, when an empty string is provided for the package name, no error is detected, while an empty package download location correctly triggers an error.

[NorioKobota]

Additionally, when an empty string is provided for fields such as Package Supplier or Package Originator etc., the field itself is removed. Is this the expected behavior for fields specified with an empty string?