From 6b595801c175b99db2139f4cb9a6afafeff98de9 Mon Sep 17 00:00:00 2001
From: dP <dp@dpointer.org>
Date: Sun, 9 Apr 2023 16:39:43 +0400
Subject: [PATCH] Fix crash when minimizing vehicle window (after viewport
 porting)

---
 src/viewport.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/viewport.cpp b/src/viewport.cpp
index 4a05ba9c1f..a589c84822 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -1554,7 +1554,6 @@ void ViewportSign::MarkDirty(ZoomLevel maxzoom) const
 	for (const Window *w : Window::Iterate()) {
 		Viewport *vp = w->viewport;
 		if (vp != nullptr && vp->zoom <= maxzoom) {
-			assert(vp->width != 0);
 			Rect &zl = zoomlevels[vp->zoom];
 			MarkViewportDirty(vp, zl.left, zl.top, zl.right, zl.bottom);
 		}