[field] Fix valueMissing revalidation

[atomiks]

A required field could keep showing a stale native validation state after a previous native error changed into a required error.

Root cause

isOnlyValueMissing() reset its flag during the valueMissing check, so it never allowed value-missing-only revalidation to continue.

Changes

• Fixed the helper to only clear the flag for other validity errors.
• Added coverage for clearing an invalid email field into a required-empty field.

[pkg-pr-new]

• base-ui-tanstack-start

• vite-css-base-ui-example

  pnpm add https://pkg.pr.new/mui/base-ui/@base-ui/react@4995
  

  pnpm add https://pkg.pr.new/mui/base-ui/@base-ui/utils@4995
  

commit: 361906c

[code-infra-dashboard]

Bundle size

Bundle	Parsed size	Gzip size
@base-ui/react	▼-3B(0.00%)	🔺+2B(0.00%)

Details of bundle changes

Performance

Total duration: 1,232.63 ms +41.88 ms^(+3.5%) | Renders: 50 ⁽⁺⁰⁾ | Paint: 1,869.86 ms +88.61 ms^(+5.0%)

Test	Duration	Renders
Select mount (200 instances)	157.92 ms 🔺+26.36 ms(+20.0%)	3 (+0)
Select open (500 options)	70.50 ms 🔺+20.53 ms(+41.1%)	14 (+0)

10 tests within noise — details

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