From 47f19da710aea6bc9d946e9349f19b7ffbbd89f4 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Thu, 25 May 2023 19:17:22 +0900
Subject: [PATCH] internal/restorable: early return for an empty rectangle

---
 internal/restorable/pixelrecords.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/internal/restorable/pixelrecords.go b/internal/restorable/pixelrecords.go
index a395296d0..10ea4b6bf 100644
--- a/internal/restorable/pixelrecords.go
+++ b/internal/restorable/pixelrecords.go
@@ -28,6 +28,9 @@ type pixelsRecord struct {
 
 func (p *pixelsRecord) clearIfOverlapped(rect image.Rectangle) {
 	r := p.rect.Intersect(rect)
+	if r.Empty() {
+		return
+	}
 	ox := r.Min.X - p.rect.Min.X
 	oy := r.Min.Y - p.rect.Min.Y
 	w := p.rect.Dx()