Just after upgrading to jQuery 1.9.1 a lot of code of my application broke in elements that used .text method.

For example (inspector console):

• $('#extend_project_link').text('test')

<a href="#" class="button" id="extend_project_link">[object Text]</a>

Instead of placing the text in the element, [object Text] is added instead. My pull request address this issue: https://github.com/jquery/jquery/pull/1256