When passing a default field chain to ModelFieldSelector, the page data is
not set correctly for the relational field. To understand the issue :
- login to master enterprise all db branch in runbot (debug mode recommended)
- create a mass mailing, add subject, select 'Contact' in `Recipients` field
- click on domain selector and select 'Company' from ModelFieldSelector popover
- click somewhere else to close the popover
- again open domain selector and observe the popover
Current behavior : fields of `Contact` are visible in the page even thogh
`Company` is selected in the ModelFieldSelector
Expected behavior : fields of `Company` should be visible in the dropdown page
This commit fixes the issue by correctly pushing the page data
in ModelFieldSelector.
task - 2058702
closesodoo/odoo#39548
Related: odoo/enterprise#5370
Signed-off-by: Damien Bouvy (dbo) <dbo@odoo.com>