Upstream bugzilla exist with this same issue;

http://projects.theforeman.org/issues/15003
Can't remove a sc-param match using Hammer

Note that at the moment it's possible to use --id to specify which override value to remove:

> hammer sc-param remove-override-value -h
Usage:
    hammer sc-param remove-override-value [OPTIONS]

Options:
 --id ID                                              
 --puppet-class PUPPET_CLASS_NAME                    Puppet class name
 --puppet-class-id PUPPET_CLASS_ID                   ID of Puppet class
 --smart-class-parameter SMART_CLASS_PARAMETER_NAME  Smart class parameter name
 --smart-class-parameter-id SMART_CLASS_PARAMETER_ID  
 -h, --help                                          print help

> hammer sc-param remove-override-value --smart-class-parameter-id 53 --id 6
Override value deleted

Hi Tomas,

Thank you for your update.

Here is the customer's reason as to why --match option is useful than specifying --id:

+------------------------------------------------------------------------------+
To give you an idea of why that isn't a useful solution I'll outline what we're trying to achieve.
We use puppet to control who has sudo access on individual hosts. This requires we create a matcher against the fqdn of the host with the appropriate sudo rules as an override to our default set of rules. That works fine. The problem is, Foreman doesn't allow you to replace a fqdn match with a new one, you have to actually remove the match then read it, otherwise foreman throws an error that the match is already taken. Accurately determining which id applies to which match programmatically is very difficult, so its not practical to specify the match we want to remove via id. Instead we need to be able to specify the match via the fqdn of the host. At present we have to manually look at the output from hammer, find the id that matches up to the fqdn we're working with, manually remove it then readd the match. That's not sustainable going forward as we migrate more of our fleet to Satellite 6 and require more complicated and frequently changing sudo rules.
+------------------------------------------------------------------------------+

Regards,

Josephine

Thank you for additional info. This is valuable feedback.

As a support for the described workflow we could also add a '--force' option to 'add-override-value' command that would replace the value if the match is found.

The Satellite Team is attempting to provide an accurate backlog of bugzilla requests which we feel will be resolved in the next few releases. We do not believe this bugzilla will meet that criteria, and have plans to close it out in 1 month. This is not a reflection on the validity of the request, but a reflection of the many priorities for the product. If you have any concerns about this, feel free to contact Red Hat Technical Support or your account team. If we do not hear from you, we will close this bug out. Thank you.

Thank you for your interest in Satellite 6. We have evaluated this request, and while we recognize that it is a valid request, we do not expect this to be implemented in the product in the foreseeable future. This is due to other priorities for the product, and not a reflection on the request itself. We are therefore closing this out as WONTFIX. If you have any concerns about this, please do not reopen. Instead, feel free to contact Red Hat Technical Support. Thank you.