fix(core): clone tags for immutability

harlan-zw · harlan-zw · commit cecac1bbd5de · 2025-02-26T19:17:52.000+11:00
diff --git a/packages/unhead/src/createHead.ts b/packages/unhead/src/createHead.ts
@@ -106,7 +106,7 @@ export function createHeadCore<T = ResolvableHead>(resolvedOptions: CreateHeadOp
       }
       let hasFlatMeta = false
       ctx.entries
-        .flatMap(e => e._tags || [])
+        .flatMap(e => (e._tags || []).map(t => ({ ...t, props: { ...t.props } })))
         .sort(sortTags)
         .reduce((acc, next) => {
           const k = String(next._d || next._p)

Original file line number	Diff line number	Diff line change
`@@ -106,7 +106,7 @@ export function createHeadCore<T = ResolvableHead>(resolvedOptions: CreateHeadOp`
`106`	`106`	`}`
`107`	`107`	`let hasFlatMeta = false`
`108`	`108`	`ctx.entries`
`109`		`- .flatMap(e => e._tags \|\| [])`
	`109`	`+ .flatMap(e => (e._tags \|\| []).map(t => ({ ...t, props: { ...t.props } })))`
`110`	`110`	`.sort(sortTags)`
`111`	`111`	`.reduce((acc, next) => {`
`112`	`112`	`const k = String(next._d \|\| next._p)`