crash in landscape mode when pressing "movie watched"

expected behavior

this application should allow users to use various features in different screen states

ACTUAL BEHAVIOR

when the user presses the "movie watched" button in landscape mode this application will crash

HOW TO REPPRODUCE

download cinetaste from playstore
launch the app
click the + button
Choose any movie
change your phone's mode of mode from portrait mode to landscape mode and select "movies watched" button and record the bug
bug recording

log cat file ```FATAL EXCEPTION: main

Process: de.cineaste.android, PID: 14059 java.lang.RuntimeException: Unable to start activity ComponentInfo{de.cineaste.android/de.cineaste.android.activity.MovieSearchActivity}: java.lang.IllegalStateException: savedInstanceState.getString("query", null) must not be null at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2367) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2429) at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4038) at android.app.ActivityThread.access$900(ActivityThread.java:157) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1325) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5376) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:947) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742) Caused by: java.lang.IllegalStateException: savedInstanceState.getString("query", null) must not be null at de.cineaste.android.activity.AbstractSearchActivity.onCreate(Unknown Source) at android.app.Activity.performCreate(Activity.java:6012) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2311)```

spacepandas / cineaste-android