Once WT-5153 is complete, we can remove SERVER-43942's new index tracking workaround and instead depend on the storage engine (WT) to tell us when an index is inconsistent with the storage-wide checkpoint.
SERVER-46287Switch background validation to use read-at-time rather than a checkpoint cursor
WT-5153Make a request to open a WiredTigerCheckpoint cursor error if the targeted table has been individually checkpoint'ed
is caused by
SERVER-43942Track newly created indexes until they are part of a consistent WT checkpoint, and avoid background validating them
is related to
SERVER-69186Track newly created indexes for background validation again