From 119b05468d59a13a40919e4adf333821b7ddb644 Mon Sep 17 00:00:00 2001
From: Bobbi Webber-Manners <bmanners@krakenrobotics.com>
Date: Mon, 31 Aug 2020 23:35:55 -0400
Subject: [PATCH] EDIT: Slight tweak to undo.  Second OA-Z undoes the undo ;)

---
 apps/edit.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/apps/edit.c b/apps/edit.c
index 27d8399..f4e36b8 100644
--- a/apps/edit.c
+++ b/apps/edit.c
@@ -2241,9 +2241,12 @@ int edit(char *fname) {
     case 0x80 + 'z': // OA-z
     case 0x1a:       // Ctrl-Z
       if (canundo) {
-        gapbegin = oldgapbegin;
-        gapend   = oldgapend;
-        canundo  = 0;
+        tmp         = gapbegin;
+        gapbegin    = oldgapbegin;
+        oldgapbegin = tmp;
+        tmp         = gapend;
+        gapend      = oldgapend;
+        oldgapend   = tmp;
         draw_screen();
       } else
         beep();