# go to {nav Configuration > Website > Regional} section
# create second language
# go to {nav Website & Content > Promo Blocks > Default Group} section
# add promo block with images for each language
# add test code "<inp2:promo-block_ImageField/>" to core\admin_templates\promo_blocks\promo_block_edit.tpl
# open just added promo block on edit
# confirm that file name, displayed by test tag is related to currently selected language
# select another language in the top right corner of the promo block edit form
# confirm that form refreshes and file name, displayed by test tag is related to just selected language