Merge vs MergeAll

[OrahKokos]

🐞 Bug Report

Describe the bug

Inconsistent behavior between Merge and MergeAll

Reproduce the bug

type Base = {
  base: 'base'
}

type withX = {
  x: number
}

type withY = {
  y: number
}
type Common = O.Merge<Base, { type: TYPES.TYPE1 }>
type Type1Fields = O.MergeAll<{}, [withX, withY]>

// Not good
type Type1A = O.MergeAll<Common, [O.Partial<Type1Fields>, O.Record<PropertyKey, unknown>]>
//  type Type1A = {
//    [x: string]: unknown;
//    [x: number]: unknown;
//    base: 'base';
//    type: TYPES.TYPE1;
//    x?: unknown; <------ Should not be modified
//    y?: unknown; <------ Should not be modified
//  }

type Type1B = O.Merge<
  O.Merge<
    Common,
    O.Partial<Type1Fields>
  >,
  O.Record<PropertyKey, unknown>
>
//  type Type1B = {
//    [x: string]: unknown;
//    [x: number]: unknown;
//    base: 'base';
//    type: TYPES.TYPE1;
//    x?: number | undefined; <---- Good
//    y?: number | undefined; <---- Good
// }

Expected behavior

Marge all should produce the same result as chaining merges one by one.

Possible Solution

Screenshots

Example provided.

Additional context

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.