Merge bp5 flush read from 281#3243

Merged

pnorbert merged 2 commits intoornladios:masterfrom pnorbert:merge-bp5-flush-read-from-281

Jun 7, 2022

+169-25

Commits on Jun 6, 2022

Test writing data with multiple PerformDataWrite and read back. This breaks and points out the issue with BP5Reader::ReadData() in 2.8.0 release.
pnorbert
committed
Fix the flush/read problem in the master branch, based on how it was fixed in 2.8.1. Could not cherry-pick 95c38c3 from 2.8.1, so made this fix manually.
pnorbert
committed