Should emacsclient -e and --create-frame open both open frames?

[Björn Bidar]

Hello,

I recently noticed that when calling emacsclient is called with
--create-frame and a function such as gnus-other-frame two frames open.
I.e. I call emacsclient --create-frame --eval '(gnus-other-frame)', one
frame opens with the last buffer accessed before calling emacsclient
and another one with the buffer opened by the command evaluated.

I'm not sure if this is a bug which why I'm asking first.

Thanks,

Björn