# RP28 — close sign-up is offered once
# mutation in internal/stacks/after_setup.go:
#   - '\tif !ok || !st.Deployed || st.AppConfig == nil || st.AppConfig.SetupGate != nil {\n\t\treturn false'
#   + '\tif !ok || !st.Deployed || st.AppConfig == nil { // RED-PROOF RP28\n\t\treturn false'
# go test -run ^TestCloseSignup_OnceOnAnAppInstalledBeforeTheRule$ ./internal/stacks
# verdict: RED (assertion)
=== RUN   TestCloseSignup_OnceOnAnAppInstalledBeforeTheRule
    after_setup_test.go:139: offered twice
--- FAIL: TestCloseSignup_OnceOnAnAppInstalledBeforeTheRule (0.01s)
