--- a/hgext/hgk.py	Sat Jul 05 14:35:34 2008 +0200
+++ b/hgext/hgk.py	Sat Jul 05 14:35:36 2008 +0200
@@ -102,10 +102,9 @@
     nlprefix = '\n' + prefix;
     if ctx is None:
         ctx = repo[n]
-    (p1, p2) = ctx.parents()
     ui.write("tree %s\n" % short(ctx.changeset()[0])) # use ctx.node() instead ??
-    if p1: ui.write("parent %s\n" % short(p1.node()))
-    if p2: ui.write("parent %s\n" % short(p2.node()))
+    for p in ctx.parents():
+        ui.write("parent %s\n" % short(p.node()))
     date = ctx.date()
     description = ctx.description().replace("\0", "")
     lines = description.splitlines()

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-hgk	Sat Jul 05 14:35:36 2008 +0200
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+echo "[extensions]" >> $HGRCPATH
+echo "hgk=" >> $HGRCPATH
+
+hg init repo
+cd repo
+echo a > a
+hg ci -Am adda
+hg debug-cat-file commit 0
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-hgk.out	Sat Jul 05 14:35:36 2008 +0200
@@ -0,0 +1,9 @@
+adding a
+tree a0c8bcbbb45c
+parent 000000000000
+author test 0 0
+committer test 0 0
+revision 0
+branch default
+
+adda