Description of problem:

Consider the following kickstart section:

%packages
  @base-x
  @workstation-product
  -firefox
%end

Firefox should not be installed on the system. This works with the default yum backend, with the dnf backend however, firefox is installed on the system.


How reproducible:

Create a kickstart file with the following packages section:

%packages
  @base-x
  @workstation-product
  -firefox
%end

Install one time with the default yum backend and a second time with the dnf backend.


Actual results:

On the system installed using dnf firefox is present, on the system installed with yum, it's not, as desired.


Expected results:

The dnf backend should behave like yum and respect the deselection.