Fix AST-136035: Clear right panels only when displayed item's severity is filtered out

Previously, toggling any severity filter always hid the description and
attack vector panels. Now the panels are only cleared when the currently
displayed item belongs to a severity that was just disabled. If the item's
severity is still active, the panels stay visible.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Author: cx-aniket-shinde

checkmarx-ast-eclipse-plugin/src/com/checkmarx/eclipse/views/CheckmarxView.java

@@ -160,6 +160,7 @@ public class CheckmarxView extends ViewPart implements EventHandler {
 	private Text commentText;
 	private DisplayModel rootModel;
 	private String selectedSeverity, selectedState;
+	private DisplayModel currentlyDisplayedItem;
 	private Button triageButton;
 	private SelectionAdapter triageButtonAdapter, codeBashingAdapter;
 	private Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
@@ -1385,6 +1386,7 @@ protected IStatus run(IProgressMonitor arg0) {
 
 							if (selectedItem.getResult() != null && selectedItem.getResult().getSimilarityId() != null) {
 								sync.asyncExec(() -> {
+									currentlyDisplayedItem = selectedItem;
 									createTriageSeverityAndStateCombos(selectedItem);
 									populateTriageChanges(selectedItem);
 									resultViewComposite.setVisible(true);
@@ -2488,8 +2490,12 @@ private void listener(PluginListenerDefinition definition) {
 
 	private void updateResultsTree(List<DisplayModel> results, boolean expand) {
 		sync.asyncExec(() -> {
-			resultViewComposite.setVisible(false);
-			attackVectorCompositePanel.setVisible(false);
+			if (currentlyDisplayedItem == null
+					|| currentlyDisplayedItem.getSeverity() == null
+					|| !FilterState.isSeverityEnabled(currentlyDisplayedItem.getSeverity())) {
+				resultViewComposite.setVisible(false);
+				attackVectorCompositePanel.setVisible(false);
+			}
 			rootModel.children.clear();
 			rootModel.children.addAll(results);
 			Object[] expanded = resultsTree.getExpandedElements();