[SERVER-47219] Correct downgrade_after_rollback_via_refetch to not binary downgrade on crash - MongoDB Jira

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SERVER-47538 `runMongoProgram` should omit auth options on multiversion mongod binaries

WT-5964 4.2 unable to open properly downgraded 4.4 datafiles

WT-5934 Stop validating timestamps read from disk in 4.2

WT-6011 Bump the compatibility version for MongoDB v4.5 to distinguish from 4.4

is related to

SERVER-48082 WT clean shutdown should do a quick exit before shouldDowngrade() check if the node is still not safe to take stable checkpoints.

related to

SERVER-45010 Clean shutdown after rollbackViaRefetch with eMRC=false can cause us to incorrectly overwrite unstable checkpoints

SERVER-47126 Clean dbpath when downgrading arbiters in multiversion tests

SERVER-46714 dbtest StorageTimestampTests suite returns successful process exit code despite test failure

SERVER-38925 Rollback via refetch can cause _id duplication when enableMajorityReadConcern:false

(4 related to)

Participants:: Alex Cameron, Daniel Gottlieb, Githook User, Kelsey Schubert, Luke Chen