"Undefined" is displayed as the metric value for custom-labeled metrics when using the "View as Table" option from a chart in the dashboard view

[MallikarjunaReddyN]

Bug description

"Undefined" is displayed as the metric value for custom-labeled metrics when using the "View as Table" option from a chart in the dashboard view

• Create Pie chart
• Edit the label for metric.

Screenshots/recordings

showing-undefined-as-values-when-view-as-table.webm

Superset version

6.0.0

Python version

3.11

Node version

18 or greater

Browser

Chrome

Additional context

No response

Checklist

• I have searched Superset docs and Slack and didn't find a solution to my problem.
• I have searched the GitHub issue tracker and didn't find a similar bug report.
• I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section.