[Templates] Problem with single element arrays

[Andy Wardley]

Bill Ward wrote:
> Why can't .first and .last on a scalar return that scalar?

They do.  Or more generally, if you call any list vmethod on a scalar then it 
will automagically upgrade it to a single element list before calling the vmethod.

The problem occurs when you've got a single item which is an object or a hash 
array.  Then it tries to call an object method/hash lookup before falling back 
on a list vmethod.

In essence, the patch in 2.14a broke the fallback to a list vmethod, and 
Jess's patch in 2.20 fixed it again.

Cheers
A