Error creating index on temporal table when including a column

I have created a table with system versioning turned on. When I try to create an index on the _history table, and Include a column, a create script is generated with an empty include argument: 

create nonclustered index "some_name"
on "some_table_history"
(
   "some_table_id", 
   "some_other_column"
)
 include
 (
 )

Naturally, this gives an error on execution.

Doing the same on the base table gives a correct create script:

create nonclustered index "some_name"
on "some_table"
(
   "some_table_id", 
   "some_other_column"
)
 include
 (
   "some_third_column"
 )

Why is an included column not included in the create script?