[BUG] EmitDefaultValue=false for int

I'm using C# microservices and use OpenAPI to generate the Nugets. My DTO has some properties that are int with a range and a default:

[Range(-1, int.MaxValue)]
[DefaultValue(-1)]
public int SomeNumber { get; set; } = -1;

And these are my related packages:

<PackageReference Include="Swashbuckle.AspNetCore" Version="6.1.4" />
<PackageReference Include="Swashbuckle.AspNetCore.Annotations" Version="6.1.4" />
<PackageReference Include="Swashbuckle.AspNetCore.Newtonsoft" Version="6.1.4" />

For some unknown reason, this property is created in the generated Nuget with EmitDefaultValue=false, making it impossible to give this property a value of 0. I tried manually adding EmitDefaultValue to true, and updating the package versions to 6.5.0 (latest).
I saw several related bugs and PR to this repository that were resolved, but found no explanation on how to solve it:
3274
10772
9071
4346

Please let me know what fixes were done for these other issues and what changes I need to make.

Start by comparing the generated C# NuGet DTO property with the provided DefaultValue and Range annotations, then read the related issues 3274, 10772, 9071, and 4346. Confirm which generator options or template behavior produces EmitDefaultValue=false and document a reproducible fix or the required configuration change.