サムネイル表示を一度も行わずにOpenTweenを終了させるとNullReferenceExceptionが発生する不具合の修正

diff --git a/OpenTween/Tween.cs b/OpenTween/Tween.cs
index cc21206..95947d3 100644 (file)
--- a/OpenTween/Tween.cs
+++ b/OpenTween/Tween.cs
@@ -369,7 +369,9 @@ namespace OpenTween
                     this.IconCache.Dispose();
                 }
 
-                this.thumbnailTokenSource.Dispose();
+                if (this.thumbnailTokenSource != null)
+                    this.thumbnailTokenSource.Dispose();
+
                 this.itemCacheLock.Dispose();
                 this.tw.Dispose();
                 this._hookGlobalHotkey.Dispose();