BRG_013: UD reevaluation formula: use `HEAD~1.membersCountReeval` instead of `HEAD.membersCount`
The formula specified in the protocol appears not to be consistent with the RTM.
cf https://forum.monnaie-libre.fr/t/reevaluation-du-du/5756/42
Proposal: use HEAD~1.membersCountReeval
instead of HEAD.membersCount
Edited by Éloïs