SyncWriter.flush() now throw Exception when previous task was failed#484

alex268 merged 2 commits intoydb-platform:masterydb-platform/ydb-java-sdk:masterfrom

ekuvardin:475.SyncWriter-and-flush-problem-throwing-Exceptionekuvardin/ydb-java-sdk:475.SyncWriter-and-flush-problem-throwing-ExceptionCopy head branch name to clipboard