bug#27956: 26.0.50; Setting load-prefer-newer breaks Emacs startup

[Eli Zaretskii]

> From: Fabrice Popineau <fabrice.popineau@gmail.com>
> Date: Fri, 4 Aug 2017 20:52:45 +0200
> 
> ;; Eval:
> (setq load-prefer-newer t)
> ;; and then for example:
> (delete-selection-mode t)
> 
> results in an error and the following in the *Messages* buffer:
> 
> insert-file-contents: Recursive load: 
> "c:/MSys64/MingW64/share/emacs/26.0.50/lisp/jka-compr.el.gz",
> "c:/MSys64/MingW64/share/emacs/26.0.50/lisp/emacs-lisp/debug.el.gz",
> "c:/MSys64/MingW64/share/emacs/26.0.50/lisp/jka-compr.el.gz",
> "c:/MSys64/MingW64/share/emacs/26.0.50/lisp/jka-compr.el.gz",
> "c:/MSys64/MingW64/share/emacs/26.0.50/lisp/jka-compr.el.gz",
> "c:/MSys64/MingW64/share/emacs/26.0.50/lisp/jka-compr.el.gz",
> "c:/MSys64/MingW64/share/emacs/26.0.50/lisp/delsel.el.gz"

I don't see this in Emacs 25.2, and I don't have the current master
installed to test there.  So maybe this is a new thing on master.