From a34d19e9df1f19b6e51fadb329f57f763a727ad5 Mon Sep 17 00:00:00 2001
From: rubidium <rubidium@openttd.org>
Date: Mon, 7 Sep 2009 07:59:26 +0000
Subject: [PATCH] (svn r17440) -Fix [FS#3179] (r17375): long scrollbars would
 scroll when that was not intended. They would also not properly mark the
 window dirty.

---
 src/widgets/dropdown.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/widgets/dropdown.cpp b/src/widgets/dropdown.cpp
index 04c27de888..7ab26026d7 100644
--- a/src/widgets/dropdown.cpp
+++ b/src/widgets/dropdown.cpp
@@ -190,6 +190,8 @@ struct DropdownWindow : Window {
 	virtual void OnTick()
 	{
 		this->vscroll.UpdatePosition(this->scrolling);
+		this->scrolling = 0;
+		this->SetDirty();
 	}
 
 	virtual void OnMouseLoop()