Dropdown duplicates options key

[anil-suthar]

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CodeSandbox Case (Bug Reports)
There is an issue with Dropdown search.
I have reviewed the sample code of Dropdown component here : https://codesandbox.io/s/1qdiug?file=/src/DropdownDemo.vue
I'm testing Advanced with Templating, Filtering and Clear Icon example.

Current behavior
Here while you have multiple options with same name, the search result shows duplicate options.

Check screenshot:

I have used following options:

            ...
            countries: [
                {name: 'Australia', code: 'AU'},
                {name: 'Brazil', code: 'BR'},
                {name: 'China', code: 'CN'},
                {name: 'Egypt', code: 'EG'},
                {name: 'France', code: 'FR'},
                {name: 'Germany', code: 'DE'},
                {name: 'India', code: 'IN'},
                {name: 'India', code: 'AA'},
                {name: 'India', code: 'BB'},
                {name: 'India', code: 'CC'},
                {name: 'Japan', code: 'JP'},
                {name: 'Spain', code: 'ES'},
                {name: 'United States', code: 'US'}
            ],
            ...

Here India is used multiple times with different code but while searching Ind it shows 12/13 times.

Expected behavior
Search should find exact number of results. In this example, India should be shown 4 times only while searching Ind.

Please tell us about your environment:
OS : Windows

• Vue version: 3.X

• PrimeVue version: 3.12.X

• Browser: [all]