Webhooks seems not working when deploying a Kogito Build

apiVersion: app.kiegroup.org/v1alpha1
kind: KogitoBuild
metadata:
  name: process-quarkus-example
spec:
  runtimeImage:
    name: kogito-quarkus-jvm-ubi8-nightly
    tag: latest
  resources: {}
  targetKogitoRuntime: process-quarkus-example
  gitSource:
    contextDir: process-quarkus-example
    reference: master
    uri: 'https://github.com/kiegroup/kogito-examples'
  buildImage:
    name: kogito-quarkus-ubi8-s2i-nightly
    tag: latest
  artifact: {}
  runtime: quarkus
  type: RemoteSource
  webHooks:
    - secret: my_secret
      type: GitHub

{
    "level": "error",
    "ts": 1594794255.2239687,
    "logger": "controller-runtime.controller",
    "msg": "Reconciler error",
    "controller": "kogitobuild-controller",
    "request": "jch-cucumber-be1e/process-quarkus-example",
    "error": "BuildConfig.build.openshift.io \"process-quarkus-example-builder\" is invalid: spec.triggers[1].github.allowEnv: Invalid value: build.WebHookTrigger{Secret:\"\", AllowEnv:true, SecretReference:(*build.SecretLocalReference)(0xc001c58010)}: git webhooks cannot allow env vars",
    "stacktrace": "github.com/go-logr/zapr.(*zapLogger).Error\n\t/home/jcarvaja/go/pkg/mod/github.com/go-logr/zapr@v0.1.1/zapr.go:128\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/home/jcarvaja/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.6.0/pkg/internal/controller/controller.go:258\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/home/jcarvaja/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.6.0/pkg/internal/controller/controller.go:232\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).worker\n\t/home/jcarvaja/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.6.0/pkg/internal/controller/controller.go:211\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/home/jcarvaja/go/pkg/mod/k8s.io/apimachinery@v0.18.3/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/home/jcarvaja/go/pkg/mod/k8s.io/apimachinery@v0.18.3/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/home/jcarvaja/go/pkg/mod/k8s.io/apimachinery@v0.18.3/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.Until\n\t/home/jcarvaja/go/pkg/mod/k8s.io/apimachinery@v0.18.3/pkg/util/wait/wait.go:90"
}