lst: clear dirty range on reinstallRanges()

this fixes some of "java.lang.IndexOutOfBoundsException: Wrong line: 418. Available lines count: 418" in doUpdateRanges()

platform/vcs-impl/src/com/intellij/openapi/vcs/ex/LineStatusTracker.java

@@ -167,6 +167,7 @@ public class LineStatusTracker {
   private void destroyRanges() {
     removeAnathema();
     removeHighlightersFromMarkupModel();
+    myDirtyRange = null;
   }
 
   @CalledInAwt