fix(worker): Improper reload when running as controller and worker (#2438)

In cases where the server was started with both a controller and worker
stanza, the reload of the config was not properly setting the initial
upstream value on the new config. In this case the value is derived from
other config values and not necessarily set directly.

This now properly initializes the new config so that initial upstream is
set in the same manner as the first load.

Blame: 5d0cdf680f

internal/daemon/controller/testing.go

@@ -650,7 +650,7 @@ func TestControllerConfig(t testing.TB, ctx context.Context, tc *TestController,
 	if err := tc.b.SetupListeners(nil, opts.Config.SharedConfig, []string{"api", "cluster", "ops"}); err != nil {
 		t.Fatal(err)
 	}
-	if err := tc.b.SetupControllerPublicClusterAddress(opts.Config, ""); err != nil {
+	if err := opts.Config.SetupControllerPublicClusterAddress(""); err != nil {
 		t.Fatal(err)
 	}