In the host group parameters tab when you initially override a parameter, the entry for that parameter is removed from the list of parameters to override (because its already overridden and in the list below it.

Once you override the parameter it should not appear in the list of parameters anymore and should only appear in the Host group parameters scope list. However as soon as you click save and then come back to the same screen the list is repopulated with all of the available parameters instead of just the ones that have't been overridden.

This confuses the user because they might think they can override the parameter again which then just erases the value for the parameter they have already overridden.

Currently this is occurring on my production foreman system so I am not able to provide any screenshots. I should be able to reproduce this easily with fake data so I can provide a screencast or screenshots.