From c4ff9f76a35775b865c01e3ec7142bf222c2d95a Mon Sep 17 00:00:00 2001
From: Don HO <don.h@free.fr>
Date: Sat, 16 Feb 2019 23:47:03 +0100
Subject: [PATCH] Make "new #" document drag-and-drop operation among instances
 right.

New correct behaviour: Dragging out a "new #" document from instance 1 and dropping it into instance 2 makes disappear "new #" document from instance 1, and nothing happens in instance 2.
---
 PowerEditor/src/NppIO.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/PowerEditor/src/NppIO.cpp b/PowerEditor/src/NppIO.cpp
index 560aac4c..9d35890f 100644
--- a/PowerEditor/src/NppIO.cpp
+++ b/PowerEditor/src/NppIO.cpp
@@ -163,9 +163,10 @@ BufferID Notepad_plus::doOpen(const generic_string& fileName, bool isRecursive,
 	generic_string gs_fileName{fileName};
     size_t res = gs_fileName.find_first_of(UNTITLED_STR);
 
-    if (res != string::npos && res == 0)
+    if (res != string::npos && res == 0) // it can happen when a document named "new #", which is dragged from another instance, is dropped into this instance
     {
-        fileName2Find = fileName;
+        // it's meaningless to show empty "new #" document, so just return null
+		return nullptr;
     }
     else
     {