fix: revert consume-once (broke field resolution); index bounds alone prevent the crash

Consume-once made nearly every value-copy pass through (GetBitRange and BitCopy
are not 1:1 in WriteFieldList's two-stream layout), so fields stopped resolving.
The path-index bounds added alongside it are what actually stop the off-array
deref; keep those, drop the clear. Restores resolution; crash stays fixed.