OTPictureBox.Image にnullを代入されることが想定されていない問題を修正

diff --git a/OpenTween/OTPictureBox.cs b/OpenTween/OTPictureBox.cs
index 7e2c1cc..b67641f 100644 (file)
--- a/OpenTween/OTPictureBox.cs
+++ b/OpenTween/OTPictureBox.cs
@@ -42,7 +42,7 @@ namespace OpenTween
             set
             {
                 this.memoryImage = value;
-                base.Image = value.Image;
+                base.Image = value != null ? value.Image : null;
 
                 this.RestoreSizeMode();
             }