IDEA-214615 Memory leak in DocumentationComponent through a blinking caret

GitOrigin-RevId: 1013bb2ce007bf3bfb1d533b4fb1362c0b10dc85

platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationComponent.java

@@ -1503,6 +1503,7 @@ public class DocumentationComponent extends JPanel implements Disposable, DataPr
 
   @Override
   public void dispose() {
+    myEditorPane.getCaret().setVisible(false); // Caret, if blinking, has to be deactivated.
     myBackStack.clear();
     myForwardStack.clear();
     myKeyboardActions.clear();