Fails when permalink has custom structure with static front (fix provided)

The URLs became inconsistent after activating this plugin.

The function no_category_base_permastruct() replaces the entire permalink structure instead of removing only the category base. For example, if my structure is /blog/%category%/%postname%/ the category structure is initially /blogs/category/%category%. Removing the base with this plugin should make it /blogs/%category%, but instead it was just %category%.

This could be fixed by including the existing front like so:

function no_category_base_permastruct() {
	global $wp_rewrite, $wp_version;
	if (version_compare($wp_version, '3.4', '<')) {
		// For pre-3.4 support
		$wp_rewrite -> extra_permastructs['category'][0] = $wp_rewrite->front . '%category%';
	} else {
		$wp_rewrite -> extra_permastructs['category']['struct'] = $wp_rewrite->front . '%category%';
	}
}

I didn’t test on a version less than 3.4 so I can’t guarantee prepending front will work for older versions.

http://wordpress.org/extend/plugins/wp-no-category-base/