Fixed always scroll to headers

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

@@ -1341,7 +1341,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             ensureExpanded();
 
             bindAddresses(message);
-            bindHeaders(message);
+            bindHeaders(message, false);
             bindAttachments(message, properties.getAttachments(message.id));
 
             // Actions
@@ -1611,7 +1611,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             }
         }
 
-        private void bindHeaders(TupleMessageEx message) {
+        private void bindHeaders(TupleMessageEx message, boolean scroll) {
             boolean show_headers = properties.getValue("headers", message.id);
 
             grpHeaders.setVisibility(show_headers ? View.VISIBLE : View.GONE);
@@ -1628,6 +1628,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             else
                 tvHeaders.setText(null);
 
+            if (scroll)
                 new Handler().post(new Runnable() {
                     @Override
                     public void run() {
@@ -4223,7 +4224,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             boolean show_headers = !properties.getValue("headers", message.id);
             properties.setValue("headers", message.id, show_headers);
 
-            bindHeaders(message);
+            bindHeaders(message, true);
 
             if (show_headers && message.headers == null) {
                 Bundle args = new Bundle();