mounting a home page with package mapper results in invalid url's

If the transition destination page mountPackage HomePage, which displays a 404 error when you click on the link the normal component.
This would not be a bug?
When you reload before click, the issue does not occur.

Wicket 1.4 this issue does not happen.

The stack trace below.
WARN - WicketObjects - Could not resolve class [wicket153mount...]
java.lang.ClassNotFoundException: wicket153mount///
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at org.apache.wicket.application.AbstractClassResolver.resolveClass(AbstractClassResolver.java:108)
at org.apache.wicket.util.lang.WicketObjects.resolveClass(WicketObjects.java:68)
at org.apache.wicket.request.mapper.AbstractComponentMapper.getPageClass(AbstractComponentMapper.java:138)
at org.apache.wicket.request.mapper.PackageMapper.parseRequest(PackageMapper.java:142)
at org.apache.wicket.request.mapper.AbstractBookmarkableMapper.mapRequest(AbstractBookmarkableMapper.java:263)
at org.apache.wicket.request.mapper.mount.UnmountedMapperAdapter.mapRequest(UnmountedMapperAdapter.java:73)
at org.apache.wicket.request.mapper.mount.MountMapper.mapRequest(MountMapper.java:131)
at org.apache.wicket.request.mapper.CompoundRequestMapper.mapRequest(CompoundRequestMapper.java:130)
at org.apache.wicket.request.cycle.RequestCycle.resolveRequestHandler(RequestCycle.java:181)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:206)
at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:280)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:218)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:595)