From e3177e86f474d64d18baf35210832d2d15784e0b Mon Sep 17 00:00:00 2001
From: Erokhin Stanislav <erokhins239@gmail.com>
Date: Tue, 22 Apr 2014 18:58:10 +0400
Subject: [PATCH] [log] Fix DelegateGraphFacade when applying filters.

---
 .../intellij/vcs/log/DelegateGraphFacade.java   | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/platform/vcs-log/graph/src/com/intellij/vcs/log/DelegateGraphFacade.java b/platform/vcs-log/graph/src/com/intellij/vcs/log/DelegateGraphFacade.java
index 49774f57e723..49d63f9b2f8c 100644
--- a/platform/vcs-log/graph/src/com/intellij/vcs/log/DelegateGraphFacade.java
+++ b/platform/vcs-log/graph/src/com/intellij/vcs/log/DelegateGraphFacade.java
@@ -190,18 +190,25 @@ public class DelegateGraphFacade implements GraphFacade {
 
   @Override
   public void setVisibleBranches(@Nullable Collection<Integer> heads) {
-    if (heads == null)
+    boolean needUpdate;
+    if (heads == null) {
+      needUpdate = myHeads != null;
       myHeads = null;
-    else
+    } else {
+      needUpdate = true;
       myHeads = new HashSet<Integer>(heads);
-
-    updateVisibleGraph();
+    }
+    if (needUpdate)
+      updateVisibleGraph();
   }
 
   @Override
   public void setFilter(@Nullable Condition<Integer> visibilityPredicate) {
+    boolean needUpdate = !(visibilityPredicate == myVisibilityPredicate);
+
     myVisibilityPredicate = visibilityPredicate;
-    updateVisibleGraph();
+    if (needUpdate)
+      updateVisibleGraph();
   }
 
   @Override