bug#22300: 25.1.50; Dired -- renaming folders/files to CamelCase/UPPERCASE/lowercase.

[Keith David Bershatsky]

On an Emacs build (master branch), using Emacs -Q, I am unable to change files 
and folders in dired-mode from CamelCase/UPPERCASE/lowercase.

A folder named `FOO` cannot be changed to `foo` using `dired-do-rename`.

    Move ‘/Users/HOME/Desktop/FOO’ to ‘/Users/HOME/Desktop/foo/FOO’ failed:
      (file-error Renaming Invalid argument /Users/HOME/Desktop/FOO 
/Users/HOME/Desktop/foo/FOO)

Any ideas how to accomplish this on OSX with drives that are formatted as Mac 
OS Extended (Journaled)?

Thanks,

Keith

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In GNU Emacs 25.1.50.1 (x86_64-apple-darwin10.8.0, NS appkit-1038.36 Version 
10.6.8 (Build 10K549))
 of 2015-12-07
Repository revision: 6148555ee5a3d0139ae517803718b3e0357933c7
Windowing system distributor 'Apple', version 10.3.1038
Configured using:
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Important settings:
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Major mode: FM

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Recent messages:

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