More fixes for 1.8.2.1

Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/RelNotes/1.8.2.1.txt b/Documentation/RelNotes/1.8.2.1.txt
index 2397756..b4cf3cc 100644
--- a/Documentation/RelNotes/1.8.2.1.txt
+++ b/Documentation/RelNotes/1.8.2.1.txt
@@ -66,3 +66,6 @@
    to file scope static, but a few functions in graph.c were used by
    CGit from sideways bypassing the entry points of the API the
    in-tree users use.
+
+ * "git merge-tree" had a typo in the logic to detect d/f conflicts,
+   which caused it to segfault in some cases.