Yes.
Here's the Turkish entry:
#: src/muuli_wdr.cpp:3368
#, c-format
msgid "% of total files"
msgstr "Toplam dosyaların % o kadarı"
You can see, that in both strings "% o" is considered as a format specifier, both are the same. In the Italian translation "% o" would change to "% d", which is a different format thus poedit (and msgfmt) complains.