X-1.0: Is it necessary to destroy finder after casting it to list? --- NO!

http://sikuli.org/docx/finder.html

Doc says Finder has to be destroyed when used with for: or while:
Is it necessary to destroy it when converting to list? E.g.
  matches = list(finder)

Isn't it destroyed automatically after leaving local scope, where a region.getLastMatches() function was called?

With the information above the second example at http://sikuli.org/docx/finder.html (which could have a link for easy referencing by the way) can be simplified from :
  ...
  f.find(img) # find all matches
  mm = [] # an empty list

  while f.hasNext(): # loop as long there is a first and more matches
        mm.append(f.next()) # access next match and add to mm
  print f.hasNext() # is False, because f is empty now

  f.destroy() # release the memory used by finder

to:
  ...
  mm = list(f.find(img))