CP entry validation is inconsistent between hitting the save button and hitting command + s key combo

[alexmglover]

Description

Specially my issue is with the URL field validation. It seems like the front-end validation does not trigger when hitting command + s, but it does trigger when hitting the save button.

The url validator regex seems to indicate that the TLD is not required. It does not appear to be when getting past the front-end validation.

Steps to reproduce

1. Create an entry with URL fields.
2. Attempt to save an entry with a url without the TLD and hit save.

Additional info

• Craft version: 3.0.19
• PHP version: 7.1
• Database driver & version: 5.7
• Plugins & versions: