Admin bar links to wrong site in multisite (subdomain) network

[niklasbr]

The code

	foreach ( $actions as $link => $action ) {
		list( $title, $id ) = $action;

		$wp_admin_bar->add_menu( array(
			'parent'    => 'new-content',
			'id'        => $id,
			'title'     => $title,
			'href'      => admin_url( $link )
		) );
	}

generates the wrong URL, whenever I visit a site that has the URL subsite.subsite.example.com but generates the correct URL if the URL is of the pattern subsite.example.com. On subsite.subsite.example.com the admin bar will generate links to subsite.example.com.

Wrong URL generated

Which link is wrong? The one highlighted in blue has the form a.b.domain.tld which looks correct?

Replying to solarissmoke:

Which link is wrong? The one highlighted in blue has the form a.b.domain.tld which looks correct?

The admin-bar.js script is being loaded from the correct url (which is also the URL being visited) but the links in the admin bar goes to a different site (the blue highlight).