Backporting fix for an i18n bug. The original commit log is as follows:

Fixing i18n bug which prevented the Sun and Moon from being selected in the conjunctions tool. The bug was preventing me from calculating today's solar eclipse. Things now work.

I think the amount of obscuration shown by KStars seems to be lesser than observed, and this is yet another thing to investigate.

We should really, really do something about the way translated names are handled.