CQ5.5 Embedded Javascript not minifying

Hi

Have applied javascript minify on my publish server with the following results:

• Any scripts which are in a standard client lib folder are minified
• Any scripts which are merged in a client lib (using the embed property) are not minified

e.g.
Minified:
http://server:4503/apps/myapp/components/content/component/clientlibs.js

Not minified (even though this is just embedding the class above):
http://server:4503/etc/designs/myapp/clientlibs_component.js

I am using CQ5.5 with no Service Pack applied.  Is this the expected results?

Thanks