From 553a78b81d0deeb96940a7486074364e75d50068 Mon Sep 17 00:00:00 2001
From: nyamatongwe <nyamatongwe@gmail.com>
Date: Tue, 9 Apr 2013 13:15:47 +1000
Subject: Fix problems with input composition that could stop undo working.

---
 cocoa/ScintillaView.mm | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'cocoa/ScintillaView.mm')

diff --git a/cocoa/ScintillaView.mm b/cocoa/ScintillaView.mm
index f9496cac1..48ccdf1ef 100644
--- a/cocoa/ScintillaView.mm
+++ b/cocoa/ScintillaView.mm
@@ -401,6 +401,11 @@ static NSCursor *cursorFromEnum(Window::Cursor cursor)
                          value: mMarkedTextRange.location + mMarkedTextRange.length];
     currentPosition = mMarkedTextRange.location;
   }
+  else
+  {
+    // Ensure only a single selection
+    mOwner.backend->SelectOnlyMainSelection();
+  }
 
   // Keep Scintilla from collecting undo actions for the composition task.
   undoCollectionWasActive = [mOwner getGeneralProperty: SCI_GETUNDOCOLLECTION] != 0;
-- 
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