bug#15868: 24.3.50; `display-buffer-other-frame' does not always use other frame

[Drew Adams]

emacs -Q

C-x 2
C-x b *Messages*
C-x 5 C-o *scratch*

*scratch* is not displayed in another frame.

Either the behavior should be what the doc currently says
or the doc should specify what the behavior currently is.


In GNU Emacs 24.3.50.1 (i686-pc-mingw32)
 of 2013-10-19 on LEG570
Bzr revision: 114715 rgm@gnu.org-20131019023520-s8mwtib7xcx9e05w
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --enable-checking 'CFLAGS=-O0 -g3' CPPFLAGS=-DGLYPH_DEBUG=1'