make it easier to change order of sidebar items w/ the AdminExtension
diff --git a/Allura/allura/ext/admin/admin_main.py b/Allura/allura/ext/admin/admin_main.py
index 6e8232f..d250a70 100644
--- a/Allura/allura/ext/admin/admin_main.py
+++ b/Allura/allura/ext/admin/admin_main.py
@@ -172,7 +172,7 @@
 
         for ep_name in sorted(g.entry_points['admin'].keys()):
             admin_extension = g.entry_points['admin'][ep_name]
-            admin_extension().update_project_sidebar_menu(links)
+            links = (admin_extension().update_project_sidebar_menu(links) or links)
 
         return links
 
diff --git a/Allura/allura/lib/plugin.py b/Allura/allura/lib/plugin.py
index d881632..3bb389d 100644
--- a/Allura/allura/lib/plugin.py
+++ b/Allura/allura/lib/plugin.py
@@ -33,6 +33,7 @@
 from hashlib import sha256
 from base64 import b64encode
 from datetime import datetime, timedelta
+import typing
 import calendar
 import six
 
@@ -60,6 +61,9 @@
 from allura.tasks import activity_tasks
 from allura.tasks.index_tasks import solr_del_project_artifacts
 
+if typing.TYPE_CHECKING:
+    from allura.app import SitemapEntry
+
 log = logging.getLogger(__name__)
 
 
@@ -1800,7 +1804,7 @@
 
     project_admin_controllers = {}
 
-    def update_project_sidebar_menu(self, sidebar_links):
+    def update_project_sidebar_menu(self, sidebar_links: list['SitemapEntry']) -> list['SitemapEntry']:
         """
         Implement this function to modify the project sidebar.
         Check `c.project` if you want to limit when this displays
@@ -1811,7 +1815,7 @@
 
         :rtype: ``None``
         """
-        pass
+        return sidebar_links
 
 
 class SiteAdminExtension:
diff --git a/ForgeImporters/forgeimporters/base.py b/ForgeImporters/forgeimporters/base.py
index bd07200..e66cce2 100644
--- a/ForgeImporters/forgeimporters/base.py
+++ b/ForgeImporters/forgeimporters/base.py
@@ -611,6 +611,7 @@
         base_url = c.project.url() + 'admin/ext/'
         link = SitemapEntry('Import', base_url + 'import/')
         sidebar_links.append(link)
+        return sidebar_links
 
 
 def bytesio_parser(page):