Don't replace the already entered comment when quoting a previous comment.

git-svn-id: http://svn.redmine.org/redmine/trunk@15990 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/journals/new.js.erb

@@ -1,4 +1,9 @@
-$('#issue_notes').val("<%= raw escape_javascript(@content) %>");
+showAndScrollTo("update");
+
+var notes = $('#issue_notes').val();
+if (notes > "") { notes = notes + "\n\n"}
+
+$('#issue_notes').blur().focus().val(notes + "<%= raw escape_javascript(@content) %>");
 <%
   # when quoting a private journal, check the private checkbox
   if @journal && @journal.private_notes? 
@@ -6,5 +11,3 @@ $('#issue_notes').val("<%= raw escape_javascript(@content) %>");
 $('#issue_private_notes').prop('checked', true);
 <% end %>
 
-showAndScrollTo("update", "notes");
-$('#notes').scrollTop = $('#notes').scrollHeight - $('#notes').clientHeight;