Definition of default_deployment.pkg_prerules loses package dependencies

If you define any values for default_deployment.pkg_prerules, then the default dependency information is removed from the output. This contrasts with all other predefined information (like the package header) which is only overwritten if a new package header is removed/defined. What this means is that a change to the vendor, package id or languages forces dependencies also to be redefined.

Can be shown with simple addition of a line like this to the PRO file:
packageheader = "$${LITERAL_HASH}

, (0xEF76E063), 1, 2, 3, TYPE=SA"
default_deployment.pkg_prerules = packageheader