Adding enum values from Allowed list is always overriding first element instead of appending items

[artsiommiksiuk]

Screen.Recording.2026-01-30.at.15.18.44.mov

Only manual input of values is working, and they are also not validated relative to known enum allowed values list.

OAS 3.1
rapidoc from: https://unpkg.com/rapidoc/dist/rapidoc-min.js