Created attachment 728745 [details]
Error message: from GiB to MiB | Corrupted error message window

Using the installation media (in that case, the network installation iso file),
while Finnish has been selected as language of the interface, it is noticeable
that by default the displayed space unit is still kept in byte (B). The fact
that only minimal support for the selected language is include on this media is
only a state we have been used to for years and as it can reasonably be
expected we will have to get used to it yet for many years.

However while setting the space manually from default GiB to MiB, installation
media gives an error message. because it expects now for some reason the space
unit to be mentioned in Finnish whose match for byte (B) is tavu (t).
Furthermore the error message itself mixes two different languages for
representing the same unit, even in a same sentence. At last, by moving the
error message window in order to get a whole representation of the text and
parameters in its background, the window itself gets corrupted.