"installed_size" field from orm.package has always the value 0
We are not sure why we need this, unless package sizes can change between build and installed.
So installed_size is the size of a package when installed. It is only collected for installed packages. If the package is not installed, installed_size is 0. installed_size seems to be collected in master:463cd34f8c17c67c4f3adf3468424730b22f3974 Andreea, could you verify when you have a chance?
I have verified it in master:ac4ff568f5b2ad4f50a1b7b60797e7b797c314bb and is collected for the situation described by Belen.