Description

In Default View edit page:

• Go to the edit page: https://wikifunctions.beta.wmflabs.org/wiki/Z10126?action=edit
• Click "edit/pencil" on the About widget
• Change the main label
• Click "Done"

When the dialog closes, the page header could update to the new title

In Function Editor page it works great:

• Go to edit function page: https://wikifunctions.beta.wmflabs.org/wiki/Z11422?action=edit&uselang=en
• Edit the main function name
• When focusing out of the name field, the page title changes to the new value

Desired behavior/Acceptance criteria

• In edit pages, currently shown values should be in sync (page title, in sync with userlang object name)

Completion checklist

• Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist