Consider a SQL Server whose service account is a Managed Service Account in Active Directory. When this MSA is added to a security group, this group membership is not immediately going to take effect if SQL Server is already running as the MSA. (Restarting the SQL Service should have the effect of the MSA "logging on" again, and gaining the access of its new security group membership.)
Is there a way to safely "refresh" the service account's group membership without restarting the SQL Server?