On binary XML storage insignificant whitespaces are removed.

On binary XML storage insignificant whitespaces are removed.
This is default way of storing XML data post 12.1 release and causing trimming of whitespaces.
Using CLOBS is inefficient.
e.g
select * from table(ut_varchar2_list(' '))

select * from table(ut_varchar2_list(''))

are showing as equal.