diff --git a/src/applications/repository/engine/PhabricatorRepositoryDiscoveryEngine.php b/src/applications/repository/engine/PhabricatorRepositoryDiscoveryEngine.php
--- a/src/applications/repository/engine/PhabricatorRepositoryDiscoveryEngine.php
+++ b/src/applications/repository/engine/PhabricatorRepositoryDiscoveryEngine.php
@@ -174,12 +174,13 @@
         continue;
       }
 
-      // In Git, it's possible to tag a tag. We just skip these, we'll discover
-      // them when we process the target tag. See T11180.
+      // In Git, it's possible to tag anything. We just skip tags that don't
+      // point to a commit. See T11301.
       $fields = $ref->getRawFields();
+      $ref_type = idx($fields, 'objecttype');
       $tag_type = idx($fields, '*objecttype');
-      if ($tag_type == 'tag') {
-        $this->log(pht('Skipping, this is a tag of a tag.'));
+      if ($ref_type != 'commit' && $tag_type != 'commit') {
+        $this->log(pht('Skipping, this is not a commit.'));
         continue;
       }
 
diff --git a/src/applications/repository/engine/__tests__/PhabricatorWorkingCopyDiscoveryTestCase.php b/src/applications/repository/engine/__tests__/PhabricatorWorkingCopyDiscoveryTestCase.php
--- a/src/applications/repository/engine/__tests__/PhabricatorWorkingCopyDiscoveryTestCase.php
+++ b/src/applications/repository/engine/__tests__/PhabricatorWorkingCopyDiscoveryTestCase.php
@@ -30,6 +30,7 @@
     $this->assertEqual(
       array(
         '763d4ab372445551c95fb5cccd1a7a223f5b2ac8',
+        '41fa35914aa19c1aa6e57004d9745c05929c3563',
       ),
       mpull($refs, 'getIdentifier'));
   }
diff --git a/src/applications/repository/engine/__tests__/data/GT.git.tgz b/src/applications/repository/engine/__tests__/data/GT.git.tgz
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

literal 0
Hc$@<O00001