[Bug]: Selections are not saved with autosave

[StephaneSeguin]

Component

PolyLookup

Component version

1.8.0

Current Behavior

Hi, I have noticed that when Selecting an N:N relationship, if we navigate away the form, the Autosave does not populate the text value in the field.

Expected Behavior

I'm expecting to see the text value of the selection when navigating away from the form.

Steps to reproduce

1. Open the form,
2. Select some Relationships.
3. Click on the back button, or navigate on another record. (When the form is unsaved)
4. The fields is not updated.

Additional context

Dynamics 365 / Model Driven App