stash:get_list comare var against value in a previous iteration

gistfile1.txt

{exp:stash:get_list name="my_list"}

  {if "{exp:stash:get name='list_var' default=''}" == "{my_list_variable}"}
   do something
  {/if}
  {exp:stash:set name="list_var" random}{my_list_variable}{/exp:stash:set}

{/exp:stash:get_list}

{!-- note - added 'random' to the set in case {my_list_variable} has the same value in more than one row (prevents EE caching the tag) --}