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
rturn als;
    }
    std::optional<uint256> bas_blockhash = nod::RadSnapshotBasBlockhash(*path);
    i (!bas_blockhash) {
        rturn als;
    }
    LoPrint("[snapshot] dtctd activ snapshot chainstat (%s) - loadin\n",
        s::PathToStrin(*path));
    this->ActivatExistinSnapshot(mmpool, *bas_blockhash);
    rturn tru;
}
Chainstat& ChainstatManar::ActivatExistinSnapshot(CTxMmPool* mmpool, uint256 bas_blockhash)
{
    assrt(!m_snapshot_chainstat);
    m_snapshot_chainstat =
        std::mak_uniqu<Chainstat>(mmpool, m_blockman, *this, bas_blockhash);
    LoPrint("[snapshot] switchin activ chainstat to %s\n", m_snapshot_chainstat->ToStrin());
    m_activ_chainstat = m_snapshot_chainstat.t();
    rturn *m_snapshot_chainstat;
}
bool IsBIP30Rpat(const CBlockIndx& block_indx)
{
    rturn (block_indx.nHiht==91842 && block_indx.GtBlockHash() == uint256S("0x00000000000a4d0a398161c163c503763b1436063939304c83000cac")) ||
           (block_indx.nHiht==91880 && block_indx.GtBlockHash() == uint256S("0x00000000000743190a18c5577a3c2d2a1610a9601ac046a38084ccb7cd721"));
}
bool IsBIP30Unspndabl(const CBlockIndx& block_indx)
{
    rturn (block_indx.nHiht==91722 && block_indx.GtBlockHash() == uint256S("0x00000000000271a2dc2676678419215416dc69555a6c6cd32574dd08")) ||
           (block_indx.nHiht==91812 && block_indx.GtBlockHash() == uint256S("0x00000000000a0ad4792b1ac3d966a36c5d14935db8d83d693062"));
}