Added patch to avoid forcing a combobox repaint on WM_SIZE.

patches/patchinstall.sh

@@ -319,6 +319,7 @@ patch_enable_all ()
 	enable_taskmgr_Memory_Usage="$1"
 	enable_user_exe16_CONTAINING_RECORD="$1"
 	enable_user_exe16_DlgDirList="$1"
+	enable_user32_Combobox_WM_SIZE="$1"
 	enable_user32_DM_SETDEFID="$1"
 	enable_user32_DeferWindowPos="$1"
 	enable_user32_DialogBoxParam="$1"
@@ -1135,6 +1136,9 @@ patch_enable ()
 		user.exe16-DlgDirList)
 			enable_user_exe16_DlgDirList="$2"
 			;;
+		user32-Combobox_WM_SIZE)
+			enable_user32_Combobox_WM_SIZE="$2"
+			;;
 		user32-DM_SETDEFID)
 			enable_user32_DM_SETDEFID="$2"
 			;;
@@ -6712,6 +6716,21 @@ if test "$enable_user_exe16_DlgDirList" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset user32-Combobox_WM_SIZE
+# |
+# | This patchset fixes the following Wine bugs:
+# |   *	[#41404] Don't force a combobox repaint on WM_SIZE
+# |
+# | Modified files:
+# |   *	dlls/user32/combo.c
+# |
+if test "$enable_user32_Combobox_WM_SIZE" -eq 1; then
+	patch_apply user32-Combobox_WM_SIZE/0001-user32-Don-t-force-a-combobox-repaint-on-WM_SIZE.patch
+	(
+		echo '+    { "Dmitry Timoshkov", "user32: Don'\''t force a combobox repaint on WM_SIZE.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset user32-DM_SETDEFID
 # |
 # | This patchset fixes the following Wine bugs:

patches/user32-Combobox_WM_SIZE/0001-user32-Don-t-force-a-combobox-repaint-on-WM_SIZE.patch

@@ -0,0 +1,28 @@
+From e680be170761fdbfb3c9bc5ee51a5f6002e586ca Mon Sep 17 00:00:00 2001
+From: Dmitry Timoshkov <dmitry@baikal.ru>
+Date: Wed, 7 Dec 2016 16:10:31 +0800
+Subject: user32: Don't force a combobox repaint on WM_SIZE.
+
+This breaks z-order based painting and causes side effects for
+applications that during the WM_PAINT processing reference internal
+data associated with a not fully initialized window.
+---
+ dlls/user32/combo.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/dlls/user32/combo.c b/dlls/user32/combo.c
+index a2e8b3c..501bfe8 100644
+--- a/dlls/user32/combo.c
++++ b/dlls/user32/combo.c
+@@ -1558,7 +1558,7 @@ static void COMBO_Size( LPHEADCOMBO lphc )
+ 		  &lphc->buttonRect,
+ 		  &lphc->droppedRect);
+ 
+-  CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
++  CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, FALSE );
+ }
+ 
+ 
+-- 
+2.9.0
+

patches/user32-Combobox_WM_SIZE/definition

@@ -0,0 +1 @@
+Fixes: [41404] Don't force a combobox repaint on WM_SIZE