How to make the iview select selector available for input

topic description

how the iview select selector makes it available for input can now be selected, but cannot be entered as a condition as an input box

related codes

<form-item prop="DIGESTID" label="" label-width="80" label-position="right">
        <i-select v-model="searchForm.DIGESTID" style="width: 220px" clearable="true">
            <i-option v-for="item in digestList" :value="item.DIGESTID" :key="item.DIGESTNAME">{{item.DIGESTID}} - {{item.DIGESTNAME}}</i-option>
        </i-select>
    </form-item>

what result do you expect? What is the error message actually seen?

problem description

Sep.28,2021

attribute filterable= true
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