bug(sqlite3_reset）

[lpwwpl]

in fetchNext func, sqlite3_reset cause crash, stmt is NULL or wild pointer

fetchNext func{ ... case SQLITE_DONE: if (rInf.isEmpty()) // must be first call. initColumns(true); q->setAt(QSql::AfterLastRow); ### sqlite3_reset(stmt); case SQLITE_CONSTRAINT: case SQLITE_ERROR: // SQLITE_ERROR is a generic error code and we must call sqlite3_reset() // to get the specific error message. ### res = sqlite3_reset(stmt); q->setLastError(qMakeError(access, QCoreApplication::translate("QSQLiteResult", "Unable to fetch row"), QSqlError::ConnectionError, res)); q->setAt(QSql::AfterLastRow); return false; case SQLITE_MISUSE: case SQLITE_BUSY: default: // something wrong, don't get col info, but still return false q->setLastError(qMakeError(access, QCoreApplication::translate("QSQLiteResult", "Unable to fetch row"), QSqlError::ConnectionError, res)); ### sqlite3_reset(stmt); q->setAt(QSql::AfterLastRow); return false; } ... }