For simple file aggregates in a package, the child node jcr:content is not correctly overwritten.
State in repository
In my package I have the filter
And the package content consists of only the binary file /content/test/thumbnail.png.
Once I install that package it will not remove/recreate /content/test/thumbnail.png/jcr:content and also leave the child node dam:thumbnails in place.
I would expect that /content/test/thumbnail.png/jcr:content/dam:thumbnails is removed with the installation of the package.