Am I missing something very obvious?
SSO is supposed to work for a number of sites "running off a single shared code base".
For my controller domain, I log in and enable the SSO controller. All fine so far.
For my client domain, I log in an enable my SSO client, but I notice that the SSO controller is already enabled because it's a shared code base and shared database. As soon as I enable the SSO client on my client site I start to see the above message (twice - I assume each enabled half of the sso module is spotting the other half).
How do I only enable the sso controller on my controller domain and only the sso client on my client domain?