Prevent crash

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

@@ -177,6 +177,15 @@ public class FragmentDialogBase extends DialogFragment {
         }
     }
 
+    @Override
+    public void dismiss() {
+        try {
+            super.dismiss();
+        } catch (Throwable ex) {
+            Log.e(ex);
+        }
+    }
+
     @Override
     public void onDismiss(@NonNull DialogInterface dialog) {
         sendResult(RESULT_CANCELED);