Creative Cloud Packager 1.9 downloads all apps even though they are marked as being downloaded in the CCPackager

Has anyone else noticed that even if an app is marked as being downloaded in the Creative Cloud Packager (CCP), that it will go through the download process again if creating another package that may include that app?

For example, if building a 'Master Collection' package containing all the required apps (Acrobat, Flash Builder, Dreamweaver, InDesign, etc) it will download them all into the AdobeCCPCache folder, then build the package.  Then lets say you want to build a 'Design & Web Premium' package that contains some of the same apps as the 'Master Collection', the CCP will show the apps as having been downloaded already, but will go through the download process again, then build the package.  Seems to defeat the purpose of downloading to make the package building process quicker.  Seems to take just as long.  Is this by design?

I have installed that latest version of CCP, which best I can tell is 1.9 build 6, running on a freshly installed OS with no other Adobe software except for Flash Player 18.0.0.209, Shockwave Player 12.1.9.159 and Reader 11.0.12.

Thanks!