Lots of tests and necessary fixes for sanitize

Use async create instead of initialize

Add versionReset; Revert static creat

Remove exclamation maarks

Put comment back in

Revert last commit

Delete stray empty line

Revert ensureMeta changes

Clean up testing

Save progress with U64s

Fix issues with BTreeSet

More tests

Update to handle in option so linkage test passes

save progress on set

More tests

Save progress

last tests