Description of problem:
Refreshing a document list while a filter is in effect causes a type error

Version-Release number of selected component (if applicable):
dev

How reproducible:
Moderate always

Steps to Reproduce:
1. Sign in, go to a project version that has documents
2. Enter in a search term that shows documents
3. Press F5 to refresh the browser

Actual results:
(TypeError) : this$static is null

Expected results:


Additional info:
(TypeError) : this$static is null
	at Unknown.$collect(JsArrayString.java:42)
	at Unknown.fillInStackTrace_3(StackTraceCreator.java:174)
	at Unknown.fillInStackTrace_1(StackTraceCreator.java:501)
	at Unknown.fillInStackTrace(Throwable.java:72)
	at Unknown.$$init_12(Throwable.java:46)
	at Unknown.Throwable_0(Throwable.java:49)
	at Unknown.Exception_0(Exception.java:25)
	at Unknown.RuntimeException_0(RuntimeException.java:25)
	at Unknown.JavaScriptException_1(JavaScriptException.java:115)
	at Unknown.JavaScriptException_0(JavaScriptException.java:107)
	at Unknown.caught_0(Exceptions.java:29)
	at Unknown.$getStats(ContainerTranslationStatistics.java:135)
	at Unknown.onProjectStatsUpdated(AppPresenter.java:454)
	at Unknown.$dispatch_59(RefreshProjectStatsEvent.java:39)
	at Unknown.dispatch_60(RefreshProjectStatsEvent.java:38)
	at Unknown.dispatch(GwtEvent.java:76)
	at Unknown.dispatchEvent_1(EventBus.java:40)
	at Unknown.$doFire(SimpleEventBus.java:194)
	at Unknown.$fireEvent_0(SimpleEventBus.java:88)
	at Unknown.$fireEvent(HandlerManager.java:127)
	at Unknown.fireEvent_0(HandlerManager.java:117)
	at Unknown.$onSuccess_10(DocumentListPresenter.java:348)
	at Unknown.onSuccess_12(DocumentListPresenter.java:328)
	at Unknown.$onSuccess_30(SeamDispatchAsync.java:97)
	at Unknown.onSuccess_33(SeamDispatchAsync.java:96)
	at Unknown.onResponseReceived(RequestCallbackAdapter.java:232)
	at Unknown.$fireOnResponseReceived(Request.java:287)
	at Unknown.onReadyStateChange(RequestBuilder.java:395)
	at Unknown.anonymous(XMLHttpRequest.java:351)
	at Unknown.apply_3(Impl.java:189)
	at Unknown.entry0(Impl.java:242)
	at Unknown.anonymous(Impl.java:70)