Crash in SQLExecDirect on UPDATE statement on paramset

Works in the 3.1 release. We do for example:

update TADef set Range0=?,Range100=?,Format=?,userA_INTERVALL=?,userA_ART=? where keyTA=?

We bind all parameters and execute -> crash:

maodbc.dll!std::_String_val<std::_Simple_types<char>>::_Large_string_engaged() Line 2301
maodbc.dll!std::_String_val<std::_Simple_types<char>>::_Myptr() Line 2293
maodbc.dll!std::string::append(const std::string & _Right) Line 3395
maodbc.dll!mariadb::assembleBatchRewriteQuery(std::string & pos, const mariadb::ClientPrepareResult * clientPrepareResult, st_mysql_bind * parameters, unsigned int arraySize, unsigned __int64 currentIndex, bool noBackslashEscapes) Line 741
maodbc.dll!mariadb::ClientPrepareResult::assembleBatchQuery(std::string & sql, st_mysql_bind * parameters, unsigned int arraySize, unsigned __int64 nextIndex) Line 817
maodbc.dll!mariadb::ClientSidePreparedStatement::executeBatchInternal(unsigned int size) Line 205
maodbc.dll!mariadb::PreparedStatement::executeBatch() Line 169
maodbc.dll!MADB_Stmt::DoExecuteBatch() Line 924
maodbc.dll!MADB_ExecuteBulk(MADB_Stmt * Stmt, unsigned int ParamOffset) Line 548
maodbc.dll!MADB_StmtExecute(MADB_Stmt * Stmt, bool ExecDirect) Line 1098
maodbc.dll!MA_SQLExecDirectW(void * StatementHandle, wchar_t * StatementText, long TextLength) Line 1063
odbc32.dll!SQLExecDirectCover() Unknown
odbc32.dll!SQLExecDirect() Unknown
...

When taking a look at assembleBatchRewriteQuery(), we see:

std::size_t assembleBatchRewriteQuery(SQLString& pos, const ClientPrepareResult* clientPrepareResult,
MYSQL_BIND* parameters, uint32_t arraySize, std::size_t currentIndex, bool noBackslashEscapes)
{
std::size_t index= currentIndex, capacity= pos.capacity(), estimatedLength;
const std::vector<SQLString> queryParts;// = clientPrepareResult->getQueryParts();
const std::size_t paramCount= clientPrepareResult->getParamCount();
const SQLString& firstPart= queryParts[1]; // <========== queryParts is empty
const SQLString& secondPart= queryParts.front(); // <========== queryParts is empty

pos.append(firstPart); // <========== CRASH HERE, because queryParts is empty
pos.append(secondPart);