When you try to display a tree with many nodes the label "Load more results" is displayed for all the locales in session.
Example to reproduce with Liferay Portal 6.1.10EE ga1 :
1. Go to Control Panel -> Categories and Add more than 50 categories to the Topic vocabulary
2. Change the locale in session eg. set in URL the friendly prefix: /es_ES to change to Spanish.
3. Go to Control Panel -> Web Content and add a content. Categorize this content. The label "Load more results" appears in the displayed category tree.
CAUSED BY: The label is hard coded.