The change was made in July and doesn't appear to be associated with a JIRA:
r931361 | hlship | 2010-04-07 00:01:00 BST Do not render an id attribute for Label components, as they can be identified via their for attribute Yes they can, but it's pretty standard to find tags in the dom via id's, especially when using prototype. Howard, can you explain why this change was necessary, and the thinking behind it. Unfortunately this change has broken our client side validation error messages. We only noticed yesterday. The change immediately before it changed the - to a _ before the 'label' suffix. I'd like to know why this was done before I raise a JIRA. Thanks, Andy.
