Array to string conversion

[XFFA.IR Bot]

I have just added a multi selection box to some filtering.
HTML:

                        <xf:cell width="41%" rowspan="2">
                            <xf:select name="type" value="{$filters.type}" multiple="true">
                                <xf:option value="any">{{ phrase('any') }}</xf:option>
                                <xf:options source="$filterBits.types" />
                            </xf:select>
                        </xf:cell>

When filters are applied, the filter...

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