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(0x7f2e1ba83a48), guarded_by(0x7f2e14563698), guarded_by(0x7f2e373bc848), guarded_by(0x7f2e36e33498)]]
std::optional<AssumeutxoHash> m_target_utxohash;