Image import tag issue

### Description

I transferred the compressed package to another server using `nerdctl save image:latest | gzip > images.tar.gz`. There was a tag issue. What could be the reason?
```shell
[root@master ~]# nerdctl images | grep registry.k8s.io
registry.k8s.io/ingress-nginx/kube-webhook-certgen v1.4.4 a9f03b34a3cb 28 seconds ago linux/amd64 66.59MB 26.15MB
registry.k8s.io/ingress-nginx/controller v1.12.0-beta.0 9724476b9289 37 seconds ago linux/amd64 296.2MB 104.6MB
[root@master ~]# crictl images | grep registry.k8s.io
registry.k8s.io/ingress-nginx/controller:v1.12.0-beta.0 11b916a025f02 105MB
registry.k8s.io/ingress-nginx/kube-webhook-certgen:v1.4.4 a62eeff05ba51 26.2MB
```

### Steps to reproduce the issue

1.
2.
3.

### Describe the results you received and expected

crictl and nerdctl agreement

### What version of nerdctl are you using?

nerdctl version 2.0.0

### Are you using a variant of nerdctl? (e.g., Rancher Desktop)

None

### Host information

_No response_