Setting social profiles requires password every time ?

Hello,

This is weird. Im logged in as admin. I click in ED to edit profile.

From these tabs:

Avatar, Biography, Social Profiles, Account, Location, Profile URL, Site Details

i pick: Social Profiles
I entered my facebook and saved.

But it says: Your password is too short. It needs to contain at least 4 characters.

i i click the tab account, enter my pass 2 times and go back to the Social Profiles and hit save, its saved...
the next Social Profiles edit i have to do it again...

Why isnt this working without the password?