Description of problem:

When selecting multiple hosts in the Hosts overview and selecting "Edit Parameters" I can see the parameters I can edit on these Hosts/selection.

The thing is, the bulk action does not recognize when one of the nodes selected does not have that parameter set. So once the value is set and submit is executed an error is reported.

2018-05-09 14:40:36 d2ca410f [app] [I] Started POST "/hosts/update_multiple_parameters?host_ids%5B%5D=24&host_ids%5B%5D=25" for 10.36.116.96 at 2018-05-09 14:40:36 +0100
2018-05-09 14:40:36 d2ca410f [app] [I] Processing by HostsController#update_multiple_parameters as HTML
2018-05-09 14:40:36 d2ca410f [app] [I]   Parameters: {"utf8"=>"✓", "authenticity_token"=>"mRJuI7IlQbXiZ1PB4rlaz1wIwRawE8BjW27UA1a6/NcdkWCOTZibfcapOWZfRWO4fTm0vSbDQ1Ne4oEsK6bGMw==", "name"=>{"Raiffeisen"=>"Top"}, "host_ids"=>["24", "25"]}
2018-05-09 14:40:36 d2ca410f [app] [I] Current user: admin (administrator)
2018-05-09 14:40:36 d2ca410f [app] [I] Expire fragment views/tabs_and_title_records-3 (0.1ms)
2018-05-09 14:40:36 d2ca410f [app] [I]   Rendered common/404.html.erb within layouts/application (4.3ms)
2018-05-09 14:40:36 d2ca410f [app] [I]   Rendered layouts/_application_content.html.erb (0.6ms)
2018-05-09 14:40:36 d2ca410f [app] [I]   Rendered layouts/base.html.erb (3.1ms)
2018-05-09 14:40:36 d2ca410f [app] [I] Completed 404 Not Found in 63ms (Views: 9.9ms | ActiveRecord: 6.8ms)
2018-05-09 14:40:37 52f7f57f [app] [I] Started GET "/notification_recipients" for 10.36.116.96 at 2018-05-09 14:40:37 +0100
2018-05-09 14:40:37 52f7f57f [app] [I] Processing by NotificationRecipientsController#index as JSON
2018-05-09 14:40:37 52f7f57f [app] [I] Current user: admin (administrator)
2018-05-09 14:40:37 52f7f57f [app] [I] Expire fragment views/tabs_and_title_records-3 (0.1ms)
2018-05-09 14:40:37 52f7f57f [app] [I] Completed 200 OK in 10ms (Views: 0.1ms | ActiveRecord: 0.7ms)

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

 - satellite-6.3.1-3.el7sat.noarch

How reproducible:

 - Always

Steps to Reproduce:
1. Set Parameter Test on HostA
2. Do not set Parameter Test on HostB
3. Select HostA and HostB and run "Edit Parameters"
4. Set a value and hit "Submit"

Actual results:

A failure is reported, telling the host is not found

Expected results:

No error reported or else highlight that HostB does not have the parameter and thus can't be included in the current action/selection

Additional info:

Not sure if it's related to https://bugzilla.redhat.com/show_bug.cgi?id=1458273