Problem with domain route for new site created with site factory.

Steps:

1. Enable site factory.
2. Log in to admin panel.
3. Go to Site / sites list.
4. Create a new site.
5. Enter domain name e.g. ez5.lh.dev2.
6. Leave path empty.
7. Add language.
8. Save
9. Go to sites list.
10. Click on link in Domains column.

Actual result: New tab opens, 404 error occurs

No route found for "GET /admin/site/ez5.lh.dev2" (from "http://ez5.lh/admin/site/list")

1. Close tab, return to sites list.
2. Click on language in Main languages column (preview should be displayed in Page Builder).
3. Return to sites list.
4. Click on link in Domains column again.

Actual result: New tab opens, 500 error occurs

Argument 1 passed to eZ\Publish\Core\Repository\SiteAccessAware\LocationService::loadLocation() must be of the type int, string given

Remarks: Please see recording https://recordit.co/USHaZyb1ih.