fix: preserve falsy select filter values in FilterChip

[rsbh]

Description

A DataView select filter whose option value is 0 looked unset even though the filter was applied.

FilterChip seeded its internal value state with value || '', so 0 (and any other falsy option value) was discarded on mount:

const [filterValue, setFilterValue] = useState<any>(value || '');

Flow for filterOptions: [{ label: 'Zero', value: 0 }, ...]:

1. useFilters.onAddFilter seeds the query filter with options[0]?.value → 0. The query is correct and the filter applies.
2. FilterChip's internal state collapses to ''.
3. Select.Value (hasValue = !!value) therefore renders the "Select value" placeholder.

Net effect: the chip reads as unset while a 0 filter is active. The same coercion blanked the Input for defaultFilterValue: 0 on number and string columns.

Fix is to use ?? so only null/undefined fall back to the empty string. String(0) → "0" then matches the Select.Item value, which Select already stringifies, so the chip renders the option's label.

DataTable renders the same FilterChip, so it inherits the fix.

Deliberately out of scope

Two adjacent issues found while tracing this, left for separate PRs to keep the change minimal:

• Picking a numeric option still emits the string "0", since Select stringifies item values. Client-side filtering is unaffected (select.eq compares via String()), but a server-side consumer with dataType: 'number' receives numberValue: "0".
• useFilters seeds multiselect defaults as '' rather than [].

Type of Change

• Bug fix (non-breaking change that fixes an issue)

How Has This Been Tested?

vitest --run over filter-chip, data-view, and data-table — 333 passed, 1 pre-existing skip (data-view/__tests__/debug.test.tsx). No new tests were added for the falsy case.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have made corresponding changes to the documentation (.mdx files) — not applicable, no API change
• I have added tests that prove my fix is effective or that my feature works — not added

Related Issues

N/A

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Project	Deployment	Actions	Updated (UTC)
apsara	Ready	Preview	Aug 12, 2026 4:30am

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Reviewing files that changed from the base of the PR and between 8d138d4 and 4f5dede.

📒 Files selected for processing (1)

• packages/raystack/components/filter-chip/filter-chip.tsx

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