[Feature Request] Show heading text rather than column name when grouping in data table

[JohnM-oss]

Problem to solve

I have a v-data-table, and I have a column "real_user_name" which has the heading text "User Name". But when I group by real_user_name, it shows "real_user_name" as the group title instead of "User Name".

This is not the desired behaviour as I would rather it showed the display name of the column rather than the ugly underscore case column name.

Proposed solution

Change the group by feature to show the display name of the column (as defined in 'text' property of 'headers').

[KaelWD]

This seems like a bug to me, I don't know why you'd want to see the underlying property name for groups like that.

[NicoAiko]

Sorry for the bump, but could this get more attention?

[KaelWD]

Workaround with the group.header slot: https://codepen.io/kaelwd/pen/OJvMOOr?editors=1010