Fix `HTMLFormRenderer` with empty `datetime` values#9928

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browniebroke merged 2 commits intoencode:mainfrom

p-r-a-v-i-n:add-failing-test

Mar 24, 2026

Commits on Mar 19, 2026

Fixed HTMLFormRenderer empty datetime value.
p-r-a-v-i-n
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Commits on Mar 20, 2026

Added additional regression coverage
p-r-a-v-i-n
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