feat: add sql transactions to encumbering queries #4716
Merged
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Description
Added SQL transactions to the encumbering queries to make the entire operation atomic.
(This is a further safeguard as a follow-on to #4663.)
Motivation and Context
It is possible that an independent thread can change the same SQL data (outputs) that were selected and verified to be encumbered just before it is encumbered.
Fixes #4701.
How Has This Been Tested?
Passed unit tests
Passed cucumber tests