App crashes on clicking hamburger icon immediately after creating a new note

[neupanedipen]

Expected behaviour

The app must be stable on trying to access other menus immediately after creating a new notebook.

Actual behaviour

But the app crashes on clicking the three horizontal lines immediately after creating a new notebook.

How to reproduce

1. Install the app from fdroid and launch it.
2. Click on pencil icon and create a new note with any name.
3. Now click on three vertical dots from top right corner of the app and click on "New Notebook" option and create a new notebook with any name.
4. Now after creating the notebook click on three horizontal lines from top left corner of the app. The app crashes.
   • App version: 3.1.3
   • Device: Samsung Galaxy Tab 3
   • Operating system: Android 4.4.2

     Recording of the bug

     https://youtu.be/tfKq4Xb7XWQ

     logcat

     FATAL EXCEPTION: main
     Process: org.kore.kolabnotes.android, PID: 26606
     java.lang.NullPointerException
     at org.kore.kolabnotes.android.fragment.DetailFragment.onBackPressed(DetailFragment.java:1495)
     at org.kore.kolabnotes.android.fragment.DetailFragment$1.onClick(DetailFragment.java:200)
     at android.view.View.performClick(View.java:4633)
     at android.view.View$PerformClick.run(View.java:19280)
     at android.os.Handler.handleCallback(Handler.java:733)
     at android.os.Handler.dispatchMessage(Handler.java:95)
     at android.os.Looper.loop(Looper.java:146)
     at android.app.ActivityThread.main(ActivityThread.java:5598)
     at java.lang.reflect.Method.invokeNative(Native Method)
     at java.lang.reflect.Method.invoke(Method.java:515)
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
     at dalvik.system.NativeStart.main(Native Method) 

[konradrenner]

Thank you for the detailed infromations about the problem!

[konradrenner]

should be fixed with latest release