CODEGEN-935 - Fix extractAllFieldsToTypes=true with @defer causing duplicated types to be generated

[eddeee888]

Description

This PR fixes a scenario where extractAllFieldsToTypes=true with @defer are used together, it may generate duplicated types

Related #10867

Type of change

• Bug fix (non-breaking change which fixes an issue)

[changeset-bot]

🦋 Changeset detected

Latest commit: fab112c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@graphql-codegen/visitor-plugin-common	Patch
@graphql-codegen/typescript-operations	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

🚀 Snapshot Release (alpha)

The latest changes of this PR are available as alpha on npm (based on the declared changesets):

Package	Version	Info
@graphql-codegen/visitor-plugin-common	7.2.1-alpha-20260714143946-fab112cc1364eed9ddf4bac70bb5639b89335f24	npm ↗︎ unpkg ↗︎
@graphql-codegen/typescript-operations	6.1.1-alpha-20260714143946-fab112cc1364eed9ddf4bac70bb5639b89335f24	npm ↗︎ unpkg ↗︎

[Copilot]

Pull request overview

Fixes TypeScript operations type generation when extractAllFieldsToTypes: true interacts with incremental delivery (@defer) and causes duplicate dependent type declarations (TS “Duplicate identifier” errors) in @graphql-codegen/visitor-plugin-common.

Changes:

• Disambiguate extracted dependent type names when multiple selection-set variants are generated for the same field/type by appending an index suffix.
• Add a regression test covering extractAllFieldsToTypes: true with a deferred fragment spread (#10867).
• Add a changeset to release patch versions for the affected packages.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
packages/plugins/typescript/operations/tests/extract-all-types-with-defer.spec.ts	Adds a regression test asserting unique extracted type names when @defer creates multiple variants.
packages/plugins/other/visitor-plugin-common/src/selection-set-to-object.ts	Ensures generated dependent type names are unique when multiple grouped selections exist for the same fieldName/typeName.
.changeset/beige-birds-agree.md	Declares patch releases for the two impacted packages.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[github-actions]

💻 Website Preview

The latest changes are available as preview in: https://pr-10897.graphql-code-generator.pages.dev