/V is inheritable like /DV (ISO 32000-2 §12.7.4.1). Clearing a text or
choice field's value removed its own /V, so a parent field's /V showed
through: Reset Form on a kid with no default refilled it with the parent's
value. When an ancestor sets /V, an empty value is now written instead of
removing the key. Check boxes and radio buttons already write /Off.
Test clearing_a_kids_value_does_not_bring_back_its_parents covers a text
kid and a list box kid through reset and through set_value; each half of
the fix was switched off in turn and the test failed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SqmHYx8FiWM5PcsoiErgp9
