Lack of edition_defaults support

[webmaster128]

When updating proto files to latest, we get an update in google/protobuf/descriptor.proto (not sure here that comes from). This leads to the folloing compilation error:

npm run build

> cosmjs-types@0.10.1 build
> rm -rf ./build && tsc && npm run prepare-publishing

src/google/protobuf/descriptor.ts:4655:5 - error TS2322: Type '1' is not assignable to type 'FeatureSet_Utf8Validation'.

4655     utf8Validation: 1,
         ~~~~~~~~~~~~~~

  src/google/protobuf/descriptor.ts:1689:3
    1689   utf8Validation: FeatureSet_Utf8Validation;
           ~~~~~~~~~~~~~~
    The expected type comes from property 'utf8Validation' which is declared here on type 'FeatureSet'

src/google/protobuf/descriptor.ts:4673:9 - error TS2367: This comparison appears to be unintentional because the types 'FeatureSet_Utf8Validation' and '1' have no overlap.

4673     if (message.utf8Validation !== 1) {
             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/google/protobuf/descriptor.ts:4759:5 - error TS2322: Type '1 | FeatureSet_Utf8Validation' is not assignable to type 'FeatureSet_Utf8Validation'.
  Type '1' is not assignable to type 'FeatureSet_Utf8Validation'.

4759     message.utf8Validation = object.utf8Validation ?? 1;
         ~~~~~~~~~~~~~~~~~~~~~~


Found 3 errors in the same file, starting at: src/google/protobuf/descriptor.ts:4655

The reason is the use of edition_defaults in

  enum Utf8Validation {
    UTF8_VALIDATION_UNKNOWN = 0;
    VERIFY = 2;
    NONE = 3;
    reserved 1;
  }
  optional Utf8Validation utf8_validation = 4 [
    retention = RETENTION_RUNTIME,
    targets = TARGET_TYPE_FIELD,
    targets = TARGET_TYPE_FILE,
    feature_support = {
      edition_introduced: EDITION_2023,
    },
    edition_defaults = { edition: EDITION_LEGACY, value: "NONE" },
    edition_defaults = { edition: EDITION_PROTO3, value: "VERIFY" }
  ];

For some reason, Telescope generates the code message.utf8Validation = object.utf8Validation ?? 1; but 1 is the wrong default value. In fact the value 1 does not exist in enum Utf8Validation.

I think we need to teach Telescope how to correctly interpret edition_defaults annotations.