Vuetify 3 beta item-title doesn't accept multiple inputs - vue.js

Question

So I have the following:
projects: {id: number, name: string, customer: string} =
[
{id:0,name:'foo',customer:'bar'},
{id:1,name:'foo2',customer:'bar2'}
]
I'm trying to build a v-select that uses the customer and name of the project as it's item-title.
By the documentation one would expect to be able to concatenate the attributes or put them in an array. That however isn't the case.
https://next.vuetifyjs.com/en/api/v-select/#props-item-title
The following works:
<v-select
:items="projects"
item-title="name"
return-object
label="Select project"
>
<!-- or -->
<v-select
:items="projects"
item-title=""
return-object
label="Select project"
>
But trying to pass multiple things into the array or concatenating the string will not work:
<v-select
:items="projects"
item-title="[name,customer]"
return-object
>
<!-- or -->
<v-select
:items="projects"
item-title="customer+name"
return-object
>
Clicking the empty selects works but I want to display customer + "/" + name in the title
Illustration of empty v-select

Answer 1

I also tried to achieve this with default approach but it was not working for me as well. You can achieve this by a workaround for now.
In onMounted() lifecycle hook, Manipulate the input array and add a new property in each object which will contain the concatenated value.
data () {
return {
items: [
{ state: 'Florida', abbr: 'FL' },
{ state: 'Georgia', abbr: 'GA' },
{ state: 'Nebraska', abbr: 'NE' },
{ state: 'California', abbr: 'CA' },
{ state: 'New York', abbr: 'NY' },
],
}
}
onMounted() {
this.items = this.items.map(obj => obj.title = obj.state + ' - ' + obj.abbr)
}
In HTML Template :
item-title="title"