[wozhenbang2004]

Applying an object patch value drops its enumerable symbol properties because deepClonePatchValue only iterates string keys. A value produced by produceWithPatches can therefore differ from replaying its patches.

const key = Symbol("key")
const [next, patches] = produceWithPatches({}, draft => {
  draft.item = {[key]: {value: 1}}
})
const replayed = applyPatches({}, patches)
// next.item[key] is {value: 1}; replayed.item[key] is currently undefined

Clone own enumerable symbols recursively alongside the existing string-key handling. Non-enumerable symbols remain excluded, and the existing class prototype and immerable handling are preserved.

Tests cover add, replace, inverse patches, and nested symbol-value clone isolation.

Validation: source suite and coverage (4,215 passed, 8 skipped), production-build suite (3,664 passed, 8 skipped), build including declarations, Flow (0 errors), performance suite, Prettier, and diff checks.

[mweststrate]

Probably the fix should respect the setUseStrictShallowCopy flag for consistent behavior with normal recipes.

[mweststrate]

The main package iteration is determined by the flag setUseStrictShallowCopy . Please make sure the code here is consistent with that. Probably easiest to prove by rewriting the test to use the test helper runPatchTests with the option enabled and disabled.