Workaround AndroidX bug

app/src/main/java/eu/faircode/email/FragmentBase.java

@@ -39,6 +39,8 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.text.TextUtils;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
@@ -123,6 +125,12 @@ public class FragmentBase extends Fragment {
         updateSubtitle();
     }
 
+    @Override
+    public void onCreateOptionsMenu(@NonNull Menu menu, @NonNull MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
+        onPrepareOptionsMenu(menu);
+    }
+
     void invalidateOptionsMenu() {
         FragmentActivity activity = getActivity();
         if (activity != null)