leaked window in StartscreenActivity after rotation

[seg-ha]

E/WindowManager(21400):
E/WindowManager(21400): android.view.WindowLeaked: Activity org.openbmap.activities.StartscreenActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{529af28c V.E..... R......D 0,0-729,324} that was originally added here
E/WindowManager(21400): at android.view.ViewRootImpl.(ViewRootImpl.java:346)
E/WindowManager(21400): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:248)
E/WindowManager(21400): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
E/WindowManager(21400): at android.app.Dialog.show(Dialog.java:286)
E/WindowManager(21400): at org.openbmap.activities.StartscreenActivity.showUploadTaskDialog(StartscreenActivity.java:818)
E/WindowManager(21400): at org.openbmap.activities.StartscreenActivity.uploadAllCommand(StartscreenActivity.java:317)
E/WindowManager(21400): at org.openbmap.activities.StartscreenActivity.onOptionsItemSelected(StartscreenActivity.java:452)
E/WindowManager(21400): at android.app.Activity.onMenuItemSelected(Activity.java:2600)
E/WindowManager(21400): at android.support.v4.app.FragmentActivity.onMenuItemSelected(FragmentActivity.java:404)
E/WindowManager(21400): at android.support.v7.app.AppCompatActivity.onMenuItemSelected(AppCompatActivity.java:185)
E/WindowManager(21400): at android.support.v7.view.WindowCallbackWrapper.onMenuItemSelected(WindowCallbackWrapper.java:100)
E/WindowManager(21400): at android.support.v7.app.AppCompatDelegateImplV7.onMenuItemSelected(AppCompatDelegateImplV7.java:655)
E/WindowManager(21400): at android.support.v7.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:811)
E/WindowManager(21400): at android.support.v7.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:152)
E/WindowManager(21400): at android.support.v7.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:958)
E/WindowManager(21400): at android.support.v7.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:948)
E/WindowManager(21400): at android.support.v7.widget.ActionMenuView.invokeItem(ActionMenuView.java:618)
E/WindowManager(21400): at android.support.v7.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:139)
E/WindowManager(21400): at android.view.View.performClick(View.java:4438)
E/WindowManager(21400): at android.view.View$PerformClick.run(View.java:18422)
E/WindowManager(21400): at android.os.Handler.handleCallback(Handler.java:733)
E/WindowManager(21400): at android.os.Handler.dispatchMessage(Handler.java:95)
E/WindowManager(21400): at android.os.Looper.loop(Looper.java:136)
E/WindowManager(21400): at android.app.ActivityThread.main(ActivityThread.java:5001)
E/WindowManager(21400): at java.lang.reflect.Method.invokeNative(Native Method)
E/WindowManager(21400): at java.lang.reflect.Method.invoke(Method.java:515)
E/WindowManager(21400): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
E/WindowManager(21400): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
E/WindowManager(21400): at dalvik.system.NativeStart.main(Native Method)