bug#16661: 24.3.50; standalone minibuffer frame gets renamed with name of aother frame

[Eli Zaretskii]

> Date: Thu, 6 Feb 2014 10:42:10 -0800 (PST)
> From: Drew Adams <drew.adams@oracle.com>
> Cc: 16661@debbugs.gnu.org
> 
> > > When the title changes on display, does the frame parameter change
> > > as well?
> > 
> > Dunno.  I presumed so.  I'll check that the next time this happens.
> 
> The answer is yes, frame parameter `name' gets changed.

So what code can possibly change frame parameters like that?