Hash of the UTXO set at the target block, computed when the chainstate reaches the target block, and null before then.
Declared in <validation.h>
[[guarded_by(0x7fb95fa37738), guarded_by(0x7fb96ac5e698), guarded_by(0x7fb96e9d4eb8), guarded_by(0x7fb98748a528)]]
std::optional<AssumeutxoHash> m_target_utxohash;