Restore SEBPatch

SafeExamBrowser.Proctoring/ScreenProctoring/Buffer.cs

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2024 ETH Zürich, IT Services
+ * Copyright (c) 2025 ETH Zürich, IT Services
  * 
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -47,6 +47,15 @@ namespace SafeExamBrowser.Proctoring.ScreenProctoring
 			}
 		}
 
+		internal void Clear()
+		{
+			lock (@lock)
+			{
+				list.Clear();
+				logger.Debug("Cleared all data.");
+			}
+		}
+
 		internal void Dequeue()
 		{
 			lock (@lock)