id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
20921	Customizer should check theme errors(), not just exists()	nacin	nacin	"wp-admin/customize.php checks that a theme exists. It should actually check that the theme is error-free.

Note that we need to make a determination for what happens when the current theme has errors. In some cases, this will cause a reversion to the default theme, but not always (search for 'theme_parent_invalid' in class-wp-theme.php)."	defect (bug)	closed	normal	3.4	Themes		normal	fixed	has-patch commit