* s3: rescan .versions when the cached latest pointer is missing on a list
ListObjectsV2 resolves each versioned object's current version from the
latest-version pointer cached on the .versions directory entry. When that
pointer is absent on the filer serving the list, the object was dropped
from the listing. Fall back to a read-only rescan of .versions/ to pick
the newest version - the version files are present locally even when the
cached pointer is not - so the object still lists. This mirrors the read
path's recoverLatestVersionWithoutPointer; the scan loop is shared.
Read-only by design: a list can touch many objects, so it does not persist
a pointer.
* s3: copy scanned Extended before stamping the version id
Chris LuandGitHub
6c1fd3aeab