Still possible to start the editor without a list

[0xpr03]

Acra reports about java.lang.Throwable: List for editor is null

I currently can't say how its triggered. At least the way #80 worked is not the cause here.

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:448)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.reflect.InvocationTargetException
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
	... 1 more
Caused by: java.lang.Throwable: List for editor is null
	at vocabletrainer.heinecke.aron.vocabletrainer.editor.EditorActivity.onCreate(EditorActivity.kt:128)
	at android.app.Activity.performCreate(Activity.java:7009)
	at android.app.Activity.performCreate(Activity.java:7000)
	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731)
	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
	at android.app.ActivityThread.-wrap11(Unknown Source:0)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loop(Looper.java:164)
	at android.app.ActivityThread.main(ActivityThread.java:6494)
	... 3 more

Acra reports