Attach (recommended) or Link to PDF file here:
[occurmin0.pdf](https://github.com/mozilla/pdf.js/files/7340277/occurmin0.pdf)

Configuration:
- Web browser and its version: 95.0a1 (2021-10-13) (64-bit)
- Operating system and its version: Windows 10


Steps to reproduce the problem:
1. Open form in pdf.js

What is the expected behavior? (add screenshot)
Form is blank (subform `nomin`  does not display)
What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/7104454/137184675-d48027c0-1f17-4faa-bc97-b45814b38e36.png)

subform `nomin` displays, even though it's subform is set to `<occur max="-1" min="0" />`

if (!name) {
      return null;
    }
    
    
    
    
    let generator, match;
    for (let i = 0; i < 3; i++) {
      generator = dataNode[$getRealChildrenByNameIt](
        name,
         false,
         true
      );
      
      while (true) {
        match = generator.next().value;
        if (!match) {
          break;
        }
        if (isValue === match[$isDataValue]()) {
          return match;
        }
      }
      if (
        dataNode[$namespaceId] === NamespaceIds.datasets.id &&