Fixed SD2-831: Text editor jumping after copy and paste

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/2.0@1445 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextAreaControl.cs

@@ -301,6 +301,8 @@ namespace ICSharpCode.TextEditor
 			if (motherTextEditorControl.IsInUpdate) {
 				scrollToPosOnNextUpdate = new Point(column, line);
 				return;
+			} else {
+				scrollToPosOnNextUpdate = Point.Empty;
 			}
 			int curCharMin  = (int)(this.hScrollBar.Value - this.hScrollBar.Minimum);
 			int curCharMax  = curCharMin + textArea.TextView.VisibleColumnCount;