services: Block rendering during initialization
services: Block rendering during initialization

Closes #12505
cockpit-project/cockpit,garrett/cockpit,cockpituous/cockpit,cockpituous/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,cockpit-project/cockpit,deryni/cockpit,cockpituous/cockpit,cockpit-project/cockpit,deryni/cockpit,martinpitt/cockpit,garrett/cockpit,mvollmer/cockpit,deryni/cockpit,moraleslazaro/cockpit,deryni/cockpit,cockpituous/cockpit,garrett/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,garrett/cockpit,deryni/cockpit,garrett/cockpit,mvollmer/cockpit,martinpitt/cockpit,deryni/cockpit,martinpitt/cockpit,martinpitt/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,cockpituous/cockpit,deryni/cockpit,moraleslazaro/cockpit