From 17ab77f1572c3e54f82831c2a34b82e2cf40b567 Mon Sep 17 00:00:00 2001
From: Matt Mackall <mpm@selenic.com>
Date: Tue, 12 Aug 2014 02:40:42 -0500
Subject: [PATCH] repoview: filter tags to non-existent nodes from blockers
 (issue4328)

---
 mercurial/repoview.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mercurial/repoview.py b/mercurial/repoview.py
index f63cea60d2..5a50372e6a 100644
--- a/mercurial/repoview.py
+++ b/mercurial/repoview.py
@@ -41,7 +41,8 @@ def _gethiddenblockers(repo):
         tags = {}
         tagsmod.readlocaltags(repo.ui, repo, tags, {})
         if tags:
-            blockers.extend(cl.rev(t[0]) for t in tags.values())
+            rev, nodemap = cl.rev, cl.nodemap
+            blockers.extend(rev(t[0]) for t in tags.values() if t[0] in nodemap)
     return blockers
 
 def computehidden(repo):