When adding a new property, the value of "field" is replaced by the value of "default value"

[Ynn]

When adding a new component properties (or a service property) and a default value. The "default value" field value just replace the "field" field value resulting in a wrong field name and a Unassigned default value. The same applies when editing.

[tleveque]

Fix 1

[chaphe]

Done!