fix(spanner): ExcludeTransactionFromChangeStreamsOption not always propagated - #15372

fix(spanner): ExcludeTransactionFromChangeStreamsOption not always propagated#15372

scotthart wants to merge 3 commits into

googleapis:maingoogleapis/google-cloud-cpp:mainfrom

scotthart:spanner_fix_exclude_txnscotthart/google-cloud-cpp:spanner_fix_exclude_txnCopy head branch name to clipboard