Contact inheritance for service does not work after update

[danjoh]

I am having a problem with "contact inheritance" after Update from Core 4.4.5 to 4.4.6.
We have a lot of services defined with "contact_groups +<group>" and before this was working fine (adding the group <group> to the list of groups). Now it just replaces the contact_groups with <group>".

Example:

Code: Select all

define host {
        use                             host-template
        host_name                       testhost
        contact_groups                  group_a
}
define service {
        use                             service-defs
        service_description             service1
        host_name                       testhost
        check_command                   check_service1
}

define service {
        use                             service-defs
        service_description             service2
        host_name                       testhost
        check_command                   check_service2
        contact_groups                  +group_b
}

I would expect that for service1 to have "contact_groups = group_a" and service2 to have "contact_groups = group_a,group_b", but with 4.4.6 this is not the case. In 4.4.6 the result is that service2 ONLY have "contact_groups = group_b" (the "+" is ignored).

Any quick fix for this issue (short of change all services with "contact_groups +")?

Or have I misunderstood the use of "+<group>" and it was just luck that it worked before?
Use of "+<contact>" works fine for both Hosts and Services.

Regards,