[Bug Report][3.7.12] Combobox search not working after update from 3.7.11 to 3.7.12

[codingpoets]

Environment

Vuetify Version: 3.7.12
Vue Version: 3.5.21
OS: Windows 10 (current)

Steps to reproduce

1. click on the combobox
2. start typing

Expected Behavior

Typing in the search field of the combobox should display the typed text and filter the items.

Actual Behavior

The typed keys are not shown in the combobox search field and there is also no filtering happening.

Reproduction Link

https://play.vuetifyjs.com/#...

Other comments

I was searching for the cause of this issue for quite a while and I identified the exact version update when the change in behaviour occurred (from 3.7.11 to 3.7.12). My impression is that the key strokes are ocurring but the search field is cleared after every "update" for some reason. My original component was a lot more complex but I reduced it to the example given in the Playground.

Images

[codingpoets]

Here the link to the comparison of the two versions: v3.7.11...v3.7.12

[J-Sek]

The whole example is broken beyond repair. The thing that stands the most is the @update:model-value handler that sets undefined whenever component emits string - which is all the time.