Resolution field is required when I trying to create a defect

Description
When creating a Defect on the Execution page, if the Resolution field is added to this screen, it will appear with the option "Please select" as Default, making this field as Required.

Pre-conditions
Add Resolution field to the Defect creation screen

How to reproduce

1. Create a Defect on the Execution page

Actual result/Attachments
The Resolution field will show the option "Please select.." as default and an error message will appear below indicating that it´s invalid.

Expected result
It should appear without any option selected by default