Fix how copying is implemented

git-svn-id: https://tikzit.svn.sourceforge.net/svnroot/tikzit/trunk@419 7c02a99a-9b00-45e3-bf44-6f3dd7fddb64

1 files changed, 2 insertions, 2 deletions

diff --git a/tikzit/src/common/Edge.m b/tikzit/src/common/Edge.m
index 9e983d5..ed25333 100644
--- a/tikzit/src/common/Edge.m
+++ b/tikzit/src/common/Edge.m
@@ -571,8 +571,8 @@
 	[super dealloc];
 }
 
-- (id)copy {
-	Edge *cp = [[Edge alloc] init];
+- (id)copyWithZone:(NSZone*)zone {
+	Edge *cp = [[Edge allocWithZone:zone] init];
 	[cp setSource:[self source]];
 	[cp setTarget:[self target]];
 	[cp setPropertiesFromEdge:self];