[ctawiah]

Context

The LaunchDarkly sync manifest API has no formatVersion. A read of a project and a repository source that no sync wrote yet returns {"items":[],"source":"..."}, and the client rejected it with unsupported formatVersion 0. A patch that carried the field failed with /additionalProperties additional properties 'formatVersion' not allowed. Both failures stop every first sync of a project.

What changes

• SyncManifest has no FormatVersion field, and the patch body does not send one.
• GetSyncManifest, PatchSyncManifest, and the manifest store no longer check a remote format version.
• The sync.lock file keeps its own formatVersion, which is a local format.

Design notes

• The path version of the API governs the shape of the manifest, so the client has nothing of its own to check.

Review focus

• Is there any other place that expects a remote format version?

Verification

• go test ./...
• golangci-lint run ./...
• TestClientReadsAManifestWithoutAFormatVersion reads an empty manifest and one with entries. TestClientPatchesSyncManifest asserts the body without the field. TestStoreLoadsAnEmptyManifest loads a project without entries beside one with entries.
• Against staging: the read of an unwritten manifest returns the body above, a patch with formatVersion returns the schema error, and a patch without it passes the schema.

Follow-up

The upserts still carried the descriptor metadata of a linked resource, which the API rejects too. A later pull request removes it.

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