Cannot create a new folder in share mode: ReceiveExternalFilesActivity.onCreateOptionsMenu canWrite()

[TheBoegl]

While sharing a file to Nextcloud I tried to create a new folder (after switching to another account and I got the following NPE after entering the name instead of the new folder:

Cause of error

Exception in thread "main" java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.owncloud.android.datamodel.OCFile.canWrite()' on a null object reference
    at com.owncloud.android.ui.activity.ReceiveExternalFilesActivity.onCreateOptionsMenu(ReceiveExternalFilesActivity.java:1014)
    at android.app.Activity.onCreatePanelMenu(Activity.java:4595)
    at androidx.activity.ComponentActivity.onCreatePanelMenu(ComponentActivity.java:520)
    at androidx.appcompat.view.WindowCallbackWrapper.onCreatePanelMenu(WindowCallbackWrapper.java:95)
    at androidx.appcompat.app.AppCompatDelegateImpl$AppCompatWindowCallback.onCreatePanelMenu(AppCompatDelegateImpl.java:3429)
    at androidx.appcompat.app.ToolbarActionBar.populateOptionsMenu(ToolbarActionBar.java:458)
    at androidx.appcompat.app.ToolbarActionBar$1.run(ToolbarActionBar.java:58)
    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1406)
    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1415)
    at android.view.Choreographer.doCallbacks(Choreographer.java:1015)
    at android.view.Choreographer.doFrame(Choreographer.java:941)
    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1389)
    at android.os.Handler.handleCallback(Handler.java:959)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loopOnce(Looper.java:232)
    at android.os.Looper.loop(Looper.java:317)
    at android.app.ActivityThread.main(ActivityThread.java:8592)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:580)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:878)

App information

• ID: com.nextcloud.client
• Version: 30290290
• Build flavor: gplay

Device information

• Brand: google
• Device: lynx
• Model: Pixel 7a
• Id: AP2A.240805.005
• Product: lynx

Firmware

• SDK: 34
• Release: 14
• Incremental: 12025142