rebase issue on gh-pages with cr > 1.4

[EugenMayer]

After upgrading from 1.4 to 1.6.1 i know get a rebase issue when pushing the index. I do not have any un pushed changes.

I went so far removing the repo locally and cloning it from scarch and trying to release the charts to the index, but it happened again

• the repo is https://github.com/EugenMayer/helm-charts
• the config https://github.com/EugenMayer/helm-charts/blob/main/cr.yaml

Using config file:  /home/em/Development/projects/k8s/helm-external/cr.yaml
Loading index file from git repository index.yaml
Preparing worktree (detached HEAD a42c103)
HEAD is now at a42c103 add git ignore
Found cert-manager-cloudflare-config-1.1.0.tgz
Found coredns-private-dns-fix-0.1.1.tgz
Found iperf3-0.2.0.tgz
Found iperf3-0.2.1.tgz
Found localpath-1.1.0.tgz
Found longhorn-backup-config-0.0.1.tgz
Found nist-data-mirror-0.1.2.tgz
Found openldap-test-0.0.5.tgz
Found postgres-pgdump-backup-0.4.0.tgz
Found postgres-pgdump-backup-0.4.6.tgz
Found postgres-pgdump-backup-0.5.2.tgz
Found rundeck-0.9.5.tgz
Found rundeck-0.9.6.tgz
Found rundeck-1.11.0.tgz
Extracting chart metadata from .deploy/rundeck-1.11.0.tgz
Calculating Hash for .deploy/rundeck-1.11.0.tgz
Found rundeck-1.7.0.tgz
Found rundeck-1.8.0.tgz
Found vulnz-nvd-mirror-0.0.4.tgz
Found vulnz-nvd-mirror-0.1.1.tgz
Extracting chart metadata from .deploy/vulnz-nvd-mirror-0.1.1.tgz
Calculating Hash for .deploy/vulnz-nvd-mirror-0.1.1.tgz
Found whatsmyip-1.0.4.tgz
Updating index index.yaml
error: cannot pull with rebase: You have unstaged changes.
error: Please commit or stash them.
Error: exit status 128

Do i miss something?