User save test: create user without the profile

[andreyfel]

Illustration of #403

[snewcomer]

Is this PR close-able?

[andreyfel]

@snewcomer I rebased it and it is still failing. I'm wondering if it is supposed to be supported in this way?

  changeset.set('profile', profile);
  changeset.set('profile.firstName', 'Grace');

[snewcomer]

Yeah it seems we can't do

options.safeSet(Proxy, 'firstName', next.value);

I wonder why that is 🤔 There is probably something in the merge-deep util we need to look at...

[snewcomer]

What I am seeing is that you effectively have to set the profile on the user initially. Based on what I understand, this is inherent to ED and not ember-changeset.

This is a minor inconvenience; however, not solvable.

At minimum, we can document our findings. What do you think?