Fix uid duplication during paste

editor/src/components/canvas/canvas-strategies/post-action-options/post-action-paste.ts

@@ -20,6 +20,7 @@ import {
   offsetPoint,
 } from '../../../../core/shared/math-utils'
 import type { CanvasPoint } from '../../../../core/shared/math-utils'
+import { optionalMap } from '../../../../core/shared/optional-utils'
 import type {
   ElementPath,
   ElementPathPart,
@@ -42,6 +43,7 @@ import type {
 import { trueUpGroupElementChanged } from '../../../editor/store/editor-state'
 import {
   childInsertionPath,
+  getFragmentUidFromInsertionPath,
   replaceWithElementsWrappedInFragmentBehaviour,
 } from '../../../editor/store/insertion-path'
 import type { CanvasCommand } from '../../commands/commands'
@@ -166,7 +168,10 @@ function pasteChoiceCommon(
         )
       : front()
 
-  let fixedUIDMappingNewUIDS: Array<string> = []
+  let fixedUIDMappingNewUIDS: Array<string> =
+    optionalMap((wrapperUid) => [wrapperUid], getFragmentUidFromInsertionPath(target.parentPath)) ??
+    []
+
   let oldPathToNewPathMapping: OldPathToNewPathMapping = {}
   const elementsToInsert: Array<ElementOrPathToInsert> =
     pasteContext.elementPasteWithMetadata.elements.map((elementPaste) => {

editor/src/components/editor/store/insertion-path.ts

@@ -113,6 +113,30 @@ export function insertionPathToString(insertionPath: InsertionPath): string {
     assertNever(insertionPath)
   }
 }
+export function getFragmentUidFromInsertionBehaviour(
+  insertionBehaviour: ConditionalClauseInsertBehavior,
+): string | null {
+  switch (insertionBehaviour.type) {
+    case 'replace-with-elements-wrapped-in-fragment':
+    case 'wrap-in-fragment-and-append-elements':
+      return insertionBehaviour.fragmentUID
+    case 'replace-with-single-element':
+      return null
+    default:
+      assertNever(insertionBehaviour)
+  }
+}
+
+export function getFragmentUidFromInsertionPath(insertionPath: InsertionPath): string | null {
+  switch (insertionPath.type) {
+    case 'CHILD_INSERTION':
+      return null
+    case 'CONDITIONAL_CLAUSE_INSERTION':
+      return getFragmentUidFromInsertionBehaviour(insertionPath.insertBehavior)
+    default:
+      assertNever(insertionPath)
+  }
+}
 
 export function commonInsertionPath(
   metadata: ElementInstanceMetadataMap,