From cfedbd9f44fcc380f41d5fd40652172e3ec67d65 Mon Sep 17 00:00:00 2001
From: Alan Knowles <alan@roojs.com>
Date: Fri, 28 Dec 2018 15:10:51 +0800
Subject: [PATCH] GitRepo.vala

---
 GitRepo.vala | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/GitRepo.vala b/GitRepo.vala
index 801fe8df..bdfd2faa 100644
--- a/GitRepo.vala
+++ b/GitRepo.vala
@@ -601,8 +601,18 @@ public class GitRepo : Object
      	 try {					
 			var lines = this.git({"log", "master...",  "--pretty=format:\"%H %P\"" }).split("\n");;
 			var head = this.git({"log", "-1",  "--pretty=format:\"%H %P\"" });
-			var last = lines[lines.length-1];
-			var start = head.split(" ")[0];
+			var start = "";
+			for (var i = 0; i < lines.length; i++) {
+				var cols = lines[i].split(" ");
+				if (cols.length > 2) {
+					start = cols[0];
+					break;
+				}
+			}
+			if (start == "") {
+				var last = lines[lines.length-1];
+				start = head.split(" ")[0];
+			}
 			var end = last.split(" ")[1];
 			return this.git({ "diff" , start+".."+end, "--no-color" });
 		}  catch(Error ee) {
-- 
2.39.2