LoadEnv::getTargetComponent() is supposed to return nothing

... if loading the document failed. Make sure that's the case
also when the frame containing BackingComp was about to be
recycled. Can be tested by trying to open password-protected
odt, but canceling the password prompt.

Change-Id: I733357b3a961fd88db010dd8eb89e01f0cad10fa

framework/source/loadenv/loadenv.cxx

@@ -1402,6 +1402,7 @@ css::uno::Reference< css::frame::XFrame > LoadEnv::impl_searchRecycleTarget()
         {
             // bring it to front ...
             impl_makeFrameWindowVisible(aTasksAnalyzer.m_xBackingComponent->getContainerWindow(), true);
+            m_bReactivateControllerOnError = true;
             return aTasksAnalyzer.m_xBackingComponent;
         }
     }