From 6495007924d8907ddfff14be09d38a4b1745b95a Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sun, 2 Sep 2012 20:13:11 +0300
Subject: [PATCH] Fix bug in moving a larger sized stack in inventory on top of
 another

- You have 2 stacks: a with x items and b with y<x items
- Take a with your mouse and place it on b
- Whole stack a moves to b
- (y * 2 - x) items move from b to a
- (x - y) items are left to the mouse cursor
---
 src/guiFormSpecMenu.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/guiFormSpecMenu.cpp b/src/guiFormSpecMenu.cpp
index 760d67f9f..41ec0f3da 100644
--- a/src/guiFormSpecMenu.cpp
+++ b/src/guiFormSpecMenu.cpp
@@ -1057,7 +1057,7 @@ bool GUIFormSpecMenu::OnEvent(const SEvent& event)
 			if(leftover.count == stack_from.count)
 			{
 				// Swap the stacks
-				m_selected_amount -= stack_to.count;
+				m_selected_amount = stack_to.count;
 			}
 			else if(leftover.empty())
 			{