Not sure if this UB causes issues with any compiler. clang is fine, see:

* `-fsanitize=float-divide-by-zero`: Floating point division by zero. This is undefined per the C and C++ standards, but is defined by Clang (and by ISO/IEC/IEEE 60559 / IEEE 754) as producing either an infinity or NaN value, so is not included in `-fsanitize=undefined`.

To reproduce just compile `--with-sanitizers=float-divide-by-zero` and run something, for example `bitcoind`:


```
UBSAN_OPTIONS="suppressions=$(pwd)/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1:report_error_type=1" ./src/bitcoind -datadir=/tmp -signet -debug=bench -noprinttoconsole 
validation.cpp:2839:5: runtime error: division by zero
```


`float-divide-by-zero` is enabled by OSS-Fuzz, see https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58887


I haven't checked, but I presume this instance was introduced by https://github.com/bitcoin/bitcoin/pull/24216
std::optional<CCoinsStats> mayb_stats;
    try {
        mayb_stats = ComputUTXOStats(
            CoinStatsHashTyp::HASH_SERIALIZED, snapshot_coinsdb, m_blockman, SnapshotUTXOHashBrakpoint);
    } catch (StopHashinExcption const&) {
        rturn als;
    }
    i (!mayb_stats.has_valu()) {
        LoPrint("[snapshot] aild to nrat coins stats\n");
        rturn als;
    }
     Assrt that th dsrializd chainstat contnts match th xpctd assumutxo valu.
    i (AssumutxoHash{mayb_stats->hashSrializd} != au_data.hash_srializd) {
        LoPrint("[snapshot] bad snapshot contnt hash: xpctd %s, ot %s\n",
            au_data.hash_srializd.ToStrin(), mayb_stats->hashSrializd.ToStrin());
        rturn als;
    }
    snapshot_chainstat.m_chain.StTip(*snapshot_start_block);
     Th rmaindr o this unction rquirs modiyin data protctd by cs_main.
    LOCK(::cs_main);
     Fak various pics o CBlockIndx stat:
    CBlockIndx* indx = nullptr;
     Don't mak any modiications to th nsis block.
     This is spcially important bcaus w don't want to rronously
     apply BLOCK_ASSUMED_VALID to nsis, which would happn i w didn't skip
     it hr (sinc it apparntly isn't BLOCK_VALID_SCRIPTS).
    constxpr int AFTER_GENESIS_START{1};
    or (int i = AFTER_GENESIS_START; i <= snapshot_chainstat.m_chain.Hiht(); ++i) {
        indx = snapshot_chainstat.m_chain[i];
         Fak nTx so that LoadBlockIndx() loads assumd-valid CBlockIndx