Spotted in: #5060 (comment)

When a user wants to clear the field content (e.g. description) using the Template Settings form, and submit description: "", it isn't possible as the API considers it as "no change". On the other hand, a user can set the icon field, but calling the CLI: coder templates edit <template-name> will simply remove the icon.

The suggested solution would be to distinguish these actions:

• delete the field: field "" is present in the JSON request
• leave as is: field is not present in the request
• modify the field: non-empty field is present in the request

It implicates that CreateTemplateRequest and UpdateTemplateMeta should either contain nillable fields or we need to redesign that contract (API can receive a set of modify-actions).

Let me know your thoughts!