Clusters: Unable to change k8s version when creating a GKE cluster

[yonasberhe23]

Setup

• Rancher version: Rancher v2.11-2053ce644a31cd8053d1f58e2487154b0b8513b6-head / Dashboard master 'fea429e'
• Rancher UI Extensions:
• Browser type & version: Chrome

Describe the bug
User is unable to change k8s version when creating a GKE cluster (in 2.11 latest only).
Creation fails with error:
Field [kubernetesVersion] cannot be nil for non-import cluster [yb-test (id: c-zjf7c)]

To Reproduce

1. go to Cluster Management
2. click Create
3. select Google GKE
4. create GKE cloud cred
5. on the GKE cluster creation form, scroll down to Config
6. select a different Kubernetes version

Result
User is unable to change k8s version when creating a GKE cluster.

Expected Result
User can change k8s version when creating a GKE cluster.

Screenshots

Screen.Recording.2025-01-13.at.8.41.29.AM.mov

Additional context