Comment 2 for bug 484981

This is an important bug, but it's not trivial to solve. What would need to happen is to copy all POFileTranslator records from existing POFiles when new 'shared' one is created, or, even better, to reconstruct them based only on contributors that are still effective on those messages in such POFiles. It might introduce performance issues if done in places which might be called from the web UI, so ideally, it would only be done on new template import (though, this would not fix the problem for existing data such as yours).