:ditto: does not copy if additional lines are present

[Blacksmoke16]

https://crystal-lang.org/reference/syntax_and_semantics/documenting_code.html#ditto mentions that:

The directive needs to be on a separate line but further documentation can be added in other lines. The :ditto: directive is simply replaced by the content of the previous doc comment.

However this does not seem to be working (anymore?):

# Returns the number of items within this collection.
def size; end

# :ditto:
#
# Some information specific to this method.
def count; end

Produces: