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MudSelectExtended. If Virtualization enabled - placeholder not filled #595

@FASmirnov

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@FASmirnov

Good day, everyone.

I Found simple bug on MudSelectExtended with virtualization.

<MudSelectExtended @bind-SelectedValues="@_selectedValues" Label="Data Based" 
                   ItemCollection="states" SearchBox="true"
                   MultiSelection="Multiselection" Clearable="Clearable" />

    IEnumerable<string>? _selectedValues = new List<string>() {"Arizona"};

    private const bool Multiselection = true;
    private const bool Clearable = true;

    private string[] states =
    {
        "Alabama", "Alaska", "American Samoa", "Arizona",
        "Arkansas", "California", "Colorado", "Connecticut",
        "Delaware", "District of Columbia", "Federated States of Micronesia",
        "Florida", "Georgia", "Guam", "Hawaii", "Idaho",
        "Illinois", "Indiana", "Iowa", "Kansas", "Kentucky",
        "Louisiana", "Maine", "Marshall Islands", "Maryland",
        "Massachusetts", "Michigan", "Minnesota", "Mississippi",
        "Missouri", "Montana", "Nebraska", "Nevada",
        "New Hampshire", "New Jersey", "New Mexico", "New York",
        "North Carolina", "North Dakota", "Northern Mariana Islands", "Ohio",
        "Oklahoma", "Oregon", "Palau", "Pennsylvania", "Puerto Rico",
        "Rhode Island", "South Carolina", "South Dakota", "Tennessee",
        "Texas", "Utah", "Vermont", "Virgin Island", "Virginia",
        "Washington", "West Virginia", "Wisconsin", "Wyoming"
    };

If _selectedValues already have values - they dont visualize on field... Without Virtualize works fine.

With Virtualization
Image

Without Virtualization
Image

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