From 719c2b9d926bf2be4879015e3620d27d32f007b6 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Wed, 29 Aug 2007 22:41:34 +1000
Subject: [PATCH] gitk: Fix bug causing undefined variable error when
 cherry-picking

When "Show nearby tags" is turned off and the user did a cherry-pick,
we were trying to access variables relating to the descendent/ancestor
tag & head computations in addnewchild though they hadn't been set.
This makes sure we don't do that.  Reported by Johannes Sixt.

Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 gitk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gitk b/gitk
index b7730ae202..300fdceb35 100755
--- a/gitk
+++ b/gitk
@@ -6641,8 +6641,9 @@ proc splitarc {p} {
 proc addnewchild {id p} {
     global allids allparents allchildren idtags nextarc nbmp
     global arcnos arcids arctags arcout arcend arcstart archeads growing
-    global seeds
+    global seeds allcommits
 
+    if {![info exists allcommits]} return
     lappend allids $id
     set allparents($id) [list $p]
     set allchildren($id) {}