Bug Report: Pageview series name change not seen in persons modal series menu

[slshults]

Bug description

In the modal seen after hovering over a point in a chart and doing click to view people, the menu to select the series still shows $pageview for each series, instead of the new name.

The name change is seen in the hover modal:

The name change is not seen in the series menu in the persons modal:

How to reproduce

1. Create or view an insight with multiple pageviews as series
2. In edit mode, on the Detailed results table below the chart, use the pencil icon to rename each series.
3. Hover over a point on the chart, notice the name changes visible in the modal. Then click to view people
4. Notice that the menu for selecting a series stills shows $pageview for each

example insight:
https://eu.posthog.com/project/2161/insights/KHIxIcAE

Additional context

Debug info

Admin: http://go/adminOrgEU/0186099a-625a-0000-d96d-c58b13e58985 (Project: 2161)
Sentry: http://go/sentryEU/2161

[balanxiao]

I am working on this

[jannesblobel]

<3