Incorrect pod containers displayed when using custom resource columns

[aiai-guenz]

Describe the bug
Pressing the Enter key to go into a pod displays the containers of a different pod, not the expected one. This issue occurs only with custom resource column definitions.

To Reproduce
Steps to reproduce the behavior:

1. Create custom resource columns as shown in the example here: https://k9scli.io/topics/columns/
2. Open K9s.
3. Enter the pods view by typing :pods. There should be multiple pods listed, not just one.
4. The pods are initially sorted by age according to the column definitions. Press Shift-N to sort them by name. The resulting order should differ from the age-based sorting.
5. Navigate to one of the pods and press the Enter key. Instead of entering the selected pod, you enter the pod from the original age-based sorting.
6. Press the Esc key to leave the container view, which returns you to the pods view, but the sorting by name is lost.

Expected behavior
I expect to see the containers of the pod that I select and press the Enter key for.

Versions (please complete the following information):

• OS: OSX
• K9s: v0.32.4
• K8s: v1.27.13

Additional context
This issue occurs only with custom resource column definitions. Without custom columns, sorting and accessing pods function as expected.