Second field says Re&quire password..... instead of Require password. Reproducible: Always
Can you post screenshot? It shows it correctly here.
http://i.imgur.com/Vib751B.png This is on Plasma 5..4 KDE Frameworks 5.25 Qt 5.7 I'm guessing it was fixed.
I mean, Plasma 5.7.4
Most likely it is already fixed, as I can't reproduce it with latest git master