Undefined option add after change between multiple/single select

[fomin-grigorich]

"@formio/angular": "^5.5.0-rc.11",
"@formio/js": "^5.0.0-rc.33",
"@angular/common": "^15.2.8",

Hello, community. Facing the issue when changing between multiple/single select in Select => Data tab options. By default after drag-n-drop there's a single select. Added single option with number values. Selected it as default. Switched to multiple select. Switched back to single select. See UNDEFINED option as default selected value in dropdown.

Attached the video of the steps to reproduce below: Screencast 2023-11-24 00-27-23.webm