fix(override): nil pointer error

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (1c14eb6) 28.80% compared to head (ee5a530) 28.84%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #285 +/- ## ========================================== + Coverage 28.80% 28.84% +0.03% ========================================== Files 114 114 Lines 13587 13590 +3 ========================================== + Hits 3914 3920 +6 + Misses 9291 9288 -3 Partials 382 382 ``` | [Flag](https://app.codecov.io/gh/kubewharf/kubeadmiral/pull/285/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=kubewharf) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/kubewharf/kubeadmiral/pull/285/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=kubewharf) | `28.84% <100.00%> (+0.03%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=kubewharf#carryforward-flags-in-the-pull-request-comment) to find out more.

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