Wikimedia Bugzilla is closed!

If we replaced an image by another, we should change all the places the old
image is refered to the new image - unlike templates: if we moved the template
from ToBeDeleted to Delete, for example, we only should ensure the old reference
will remain active. It could be in images, too. (For example, now we in the
Hebrew Wikipedia should replace all the "COUNTRY_flag_large.png",
"COUNTRY_flag_300.png", "Flag_of_COUNTRY.PNG" with "Flag_of_COUNTRY.svg", and
I'm happy we use the SVG file format at last - but if this feature was
implemented, we could've just making all the old flags a redirection to the new
flags - and that's the end.)