Validate CI module tags before delivery preparation

cmd/releasekit/main.go

@@ -291,6 +291,15 @@ func runCIDelivery(ctx context.Context, invocation cli.Invocation, stdout, stder
 		fmt.Fprintf(stderr, "profile module selection: %v\n", err)
 		return 2
 	}
+	identity, err := releaseidentity.FromCommitted(ctx, invocation.Repository, settings.ModuleDir, invocation.Version, invocation.Commit)
+	if err != nil {
+		fmt.Fprintf(stderr, "resolve CI release identity: %v\n", err)
+		return 1
+	}
+	if invocation.ExpectedTag != identity.Tag {
+		fmt.Fprintf(stderr, "expected delivery tag %q does not match selected module tag %q\n", invocation.ExpectedTag, identity.Tag)
+		return 1
+	}
 	destination, status := deliveryDestination(invocation.Repository, settings, stderr)
 	if status != 0 {
 		return status