Please have a look at this piece of strings_english.txt

# account_profile_manage_page.php
......
$s_edit_or_delete_profiles_title = 'Edit or Delete Profiles';
$s_edit_profile = 'Edit Profile';
$s_make_default = 'Make Default';
$s_delete_profile = 'Delete Profile';
......

The string $s_make_default is not only used in account_profile_manage_page.php but also at other places, for example in set_project.php
One time it is used in the context of profile, one time in the context of project.
For this reason there is a wrong German translation for this message in the latest version. (Translated as "Make Default Profile")
I fixed the German message in translatewiki, but seems that other languages are also affected (for example French)

I think there should be two separate strings (make_default_profile and make_default_project) or place this string at another place in the file to avoid further confusion