From e40f4d2f176597ffa77bda7afc223ea33170b7e1 Mon Sep 17 00:00:00 2001
From: Marcel Werk <burntime@woltlab.com>
Date: Wed, 9 Oct 2013 14:00:37 +0200
Subject: [PATCH] Fixed attachment import issue

---
 .../system/importer/AbstractAttachmentImporter.class.php   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/wcfsetup/install/files/lib/system/importer/AbstractAttachmentImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractAttachmentImporter.class.php
index eb7f53f5c8..c11a5e2778 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractAttachmentImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractAttachmentImporter.class.php
@@ -1,6 +1,7 @@
 <?php
 namespace wcf\system\importer;
 use wcf\data\attachment\AttachmentEditor;
+use wcf\data\attachment\Attachment;
 use wcf\system\exception\SystemException;
 use wcf\util\StringUtil;
 
@@ -48,6 +49,12 @@ class AbstractAttachmentImporter extends AbstractImporter {
 		// get user id
 		$data['userID'] = ImportHandler::getInstance()->getNewID('com.woltlab.wcf.user', $data['userID']);
 		
+		// check existing attachment id
+		if (is_numeric($oldID)) {
+			$attachment = new Attachment($oldID);
+			if (!$attachment->attachmentID) $data['attachmentID'] = $oldID;
+		}
+		
 		// save attachment
 		$attachment = AttachmentEditor::create(array_merge($data, array('objectTypeID' => $this->objectTypeID)));
 		
-- 
2.20.1