Description of problem:

When the use_graphical_installer boolean is set to `true` for kickstart the %post snippet will run `chvt 1` which is not the right VTTY for the installer to complete.

This is upstream in https://projects.theforeman.org/issues/36134.

Version-Release number of selected component (if applicable): Satellite-6.13

How reproducible: Always

Steps to Reproduce:

When %post completes it tries to change to the incorrect terminal. Anaconda detects a process is still running in %post (namely the new terminal open) and the installation doesn't complete until someone presses CTRL+ALT+F6

Actual results: Graphical kickstart hangs forever

Expected results: If there was a way to just store the current vtty, that would be great.