Merge pull request 'Ticket #28427: Clear stack only when the context …

…component is the MainLayout.' (!575) from CWS/CWS_28427 into master

Reviewed-on: http://tl.bos.local:3000/TopLogic/tl-engine-7/pulls/575
Reviewed-by: jenkins <jenkins@top-logic.com>
Reviewed-by: Bernhard Haumacher <bernhard.haumacher@top-logic.com>

com.top_logic/src/main/java/com/top_logic/tool/boundsec/commandhandlers/stacked/StackedGotoHandler.java

@@ -26,7 +26,6 @@
 import com.top_logic.mig.html.layout.DialogComponent;
 import com.top_logic.mig.html.layout.DialogSupport;
 import com.top_logic.mig.html.layout.LayoutComponent;
-import com.top_logic.mig.html.layout.LayoutContainer;
 import com.top_logic.mig.html.layout.MainLayout;
 import com.top_logic.tool.boundsec.commandhandlers.GotoHandler;
 import com.top_logic.util.TLContext;
@@ -85,10 +84,10 @@ public boolean isStackedComponent(LayoutComponent aComponent) {
 
 	@Override
 	public LayoutComponent gotoLayout(LayoutComponent contextComponent, Object targetObject, ComponentName targetComponentName) {
-		if (contextComponent instanceof LayoutContainer) {
-			/* No useful goto back to a LayoutContainer possible. Therefore no recording. Such can
-			 * e.g. occur by executing a "stable bookmark". In such case the context component is
-			 * the MainLayout. */
+		if (contextComponent instanceof MainLayout) {
+			/* No useful goto back to the MainLayout possible. Therefore no recording. Such can e.g.
+			 * occur by executing a "stable bookmark". In such case the context component is the
+			 * MainLayout. */
 			clearStack(contextComponent);
 			return super.gotoLayout(contextComponent, targetObject, targetComponentName);
 		}