Added remark about QR codes

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

@@ -877,6 +877,9 @@ public class ApplicationEx extends Application
         } else if (version < 2197) {
             if (!prefs.contains("overview_mode"))
                 editor.putBoolean("overview_mode", false);
+        } else if (version < 2201) {
+            if ("a".equals(BuildConfig.REVISION))
+                editor.remove("reformatted_hint");
         }
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && !BuildConfig.DEBUG)

app/src/main/res/values/strings.xml

@@ -1674,9 +1674,10 @@
     <string name="title_expand_warning">Expanding this message will download %1$s</string>
     <string name="title_download_message">Downloading &#8230;</string>
     <string name="title_reformatted">
-        This is the reformatted message view.
-        You can tap on the &#x26F6; icon to view the original message and to hide this message.
+        This is the safe reformatted message view.
+        You can tap on the &#x26F6; icon to view the less safe original message and to hide this message.
         Reformatting messages takes some time, depending on the size of the message and the speed of your device.
+        Sometimes the original message must be viewed to see QR codes.
     </string>
 
     <string name="title_compose">Compose</string>