[PostRector] Keep imports used in an earlier docblock of a node with stacked docblocks

src/PostRector/Rector/UnusedImportRemovingPostRector.php

@@ -158,6 +158,9 @@ private function findNamesInDocBlocks(Namespace_|FileNode $rootNode): array
                 $nodeToCheck = $totalDocs === 1 ? $node : clone $node;
                 if ($totalDocs > 1) {
                     $nodeToCheck->setDocComment($doc);
+                    // the clone carries the PhpDocInfo already resolved for the original node (its last doc comment),
+                    // so the factory would return it instead of parsing $doc
+                    $nodeToCheck->setAttribute(AttributeKey::PHP_DOC_INFO, null);
                 }
 
                 $phpDocInfo = $this->phpDocInfoFactory->createFromNodeOrEmpty($nodeToCheck);

tests/Issues/NamespacedUseAutoImport/Fixture/stacked_docblocks_keep_used_import.php.inc

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\Issues\NamespacedUseAutoImport\Fixture;
+
+use Carbon\Carbon;
+use Carbon\CarbonInterface;
+
+final class StackedDocblocksKeepUsedImport
+{
+    /**
+     * @var CarbonInterface|null
+     */
+    /**
+     * @see Carbon
+     */
+    public $deletedAt;
+}
+
+?>