JSONException in ObservationViewerFragment

[kueda]

https://console.firebase.google.com/u/0/project/inaturalist-ios/crashlytics/app/android:org.inaturalist.android/issues/1f451cdd2dde1b896b9bc995b5073507

Fatal Exception: java.lang.RuntimeException: org.json.JSONException: No value for observation_sounds
       at org.inaturalist.android.ObservationViewerFragment$PhotosViewPagerAdapter.instantiateItem(ObservationViewerFragment.java:474)
       at androidx.viewpager.widget.ViewPager.addNewItem(ViewPager.java:1010)
       at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1224)
       at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1092)
       at androidx.viewpager.widget.ViewPager.setAdapter(ViewPager.java:540)
       at org.inaturalist.android.ObservationViewerFragment.reloadPhotos(ObservationViewerFragment.java:3192)
       at org.inaturalist.android.ObservationViewerFragment.access$300(ObservationViewerFragment.java:112)
       at org.inaturalist.android.ObservationViewerFragment$ObservationReceiver.onReceive(ObservationViewerFragment.java:3104)