Calculating the item length of WCU deleted Item depends on how the
operations was performed.
In a simple scenario it would be consider a 1 byte.
With an unsafe Read-Before-Write the item is return by get_perious_item
and with LWT the item is get from the apply method.
This patch changes the calls to describe_single_item in the last two
scenarios so that they would use the read item to determine the item
length.
Signed-off-by: Amnon Heiman <amnon@scylladb.com>
c62cd08fbe