To see this bug, open the URL, click in the text field, then click the button. The text field should lose focus *and the caret should disappear*. Instead, the text field loses focus but the blinking caret remains in the text field.
Hey, we reverted back to proper Mac OS X behavior! ;)
Looks like <http://trac.webkit.org/projects/webkit/changeset/21467> caused this bug.
(In reply to comment #1) > Hey, we reverted back to proper Mac OS X behavior! ;) Almost - the text field still loses focus.
<rdar://problem/5213963> REGRESSION(r21467): Blinking caret remains in text field after clicking a button
r21642