Ref: https://issues.redhat.com/browse/HMS-1672

Steps:
1. Create a custom repo with this repo url
2. Add this gpg key.
3. Shows an error saying - 

Error validating signature: openpgp: signature made by unknown entity. Is this the correct GPG Key? 

4. At the bottom of the form in the "Use gpg for" section it shows a green check mark 
which indicates gpg key is validated. 

cc: Check for the attached screenshots.

Env : 
1. EMP env 
2. stage