Windows: refactor afs status cloning and clone when fs fetchdata bug detected

Windows: refactor afs status cloning and clone when fs fetchdata bug detected

When the file server fetchdata invalid length bug is detected the
cache manager must fake the AFS Status info for the file as well
as the AFSVolSync info.   Otherwise, the merge status is incorrect.

LICENSE MIT

Reviewed-on: http://gerrit.openafs.org/651
Tested-by: Jeffrey Altman <jaltman@openafs.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>