BUG: Onboarding: connection parent_eid doesn't populate for OAuth connections created in onboarding

[alwillia]

When connecting to an OAuth-type connection in the onboarding, the parent_eid of the newly created OAuth connection needs to be set to the eid of the function mount. Parent_eids for OAuth-type connections created from New->Mount and New->Integration in the function area are set properly.

1. Go to the onboarding (https://www.flex.io/app/start)
2. Select the producthunt integration and complete the onboarding
3. Go to the connections area and examine the API call that returns the connection info
4. Look for the producthunt connection; parent_eid is empty

[dzwillia]

Let's look at this together. They're showing up for me.

Do this:

1. Press F12 to open your dev tools; go to the network tab and clear the list
2. Go to the onboarding (https://www.flex.io/app/start)
3. Select the Shopify integration and complete the onboarding
4. If you look at the network calls, you'll see that things happen in this order:
   i. the Shopify OAuth connection is created (without a parent_eid)
   ii. the function mount connection is created
   iii. the Shopify OAuth connection is updated with the parent_eid of the function mount

When I went to the connections area and refreshed, it showed up with the proper parent_eid.