Describe the bug
In the scanning page, when long click one item and try to "Edit Photo Autoprocessing", the app crashed.

To Reproduce
Steps to reproduce the behavior:

1. Open the app
2. Click "More options"
3. Click "More ..."
4. Click "Media scanner"
5. Long click a item
6. Click "Edit Photo Autoprocessing"
   Then the app crashes.

Expected behavior
Normal operation.

Smartphone (please complete the following information):

• Android version [e.g. Android-7.1] : Android 9.0
• A Photo Manager Version (i.e. 0.4.6.160304) : 0.8.3.200315

Screen Record

Crash Report
FATAL EXCEPTION: main
Process: de.k3b.android.androFotoFinder.debug, PID: 22571
java.lang.RuntimeException: Unable to start activity ComponentInfo{de.k3b.android.androFotoFinder.debug/de.k3b.android.androFotoFinder.PhotoAutoprocessingEditActivity}: java.lang.NullPointerException: Attempt to get length of null array
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.NullPointerException: Attempt to get length of null array
at de.k3b.media.PhotoPropertiesUtil.inferAutoprocessingExifDefaults(PhotoPropertiesUtil.java:386)
at de.k3b.media.PhotoPropertiesUtil.inferAutoprocessingExifDefaults(PhotoPropertiesUtil.java:374)
at de.k3b.android.androFotoFinder.PhotoAutoprocessingEditActivity.onCreate(PhotoAutoprocessingEditActivity.java:218)
at android.app.Activity.performCreate(Activity.java:7136)
at android.app.Activity.performCreate(Activity.java:7127)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) 
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loop(Looper.java:193) 
at android.app.ActivityThread.main(ActivityThread.java:6669) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)