fix: support healing older content (#10076)

This PR adds support for healing older
content i.e from 2yrs, 1yr. Also handles
other situations where our config was
not encrypted yet.

This PR also ensures that our Listing
is consistent and quorum friendly,
such that we don't list partial objects

cmd/storage-datatypes.go

@@ -80,6 +80,9 @@ type FileInfo struct {
 	// DataDir of the file
 	DataDir string
 
+	// Indicates if this object is still in V1 format.
+	XLV1 bool
+
 	// Date and time when the file was last modified, if Deleted
 	// is 'true' this value represents when while was deleted.
 	ModTime time.Time