pkg/51485: pkgsrc cannot be checked out on a case-insensitive file system

[js-pkgsrc%heap.zone@localhost]

>Number:         51485
>Category:       pkg
>Synopsis:       pkgsrc cannot be checked out on a case-insensitive file system
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Sep 18 10:45:00 +0000 2016
>Originator:     Jonathan Schleifer
>Release:        HEAD
>Organization:
>Environment:
Darwin obuolys.local 16.0.0 Darwin Kernel Version 16.0.0: Mon Aug 29 17:56:20 PDT 2016; root:xnu-3789.1.32~3/RELEASE_X86_64 x86_64
>Description:
The following two files are currently in pkgsrc:

www/seamonkey/patches/patch-mozilla_gfx_ycbcr_yuv__row__arm.s
www/seamonkey/patches/patch-mozilla_gfx_ycbcr_yuv__row__arm.S

This creates a conflict on case-insensitive file systems, where one overwrites the other. This leads to git refusing certain operations, as it constantly thinks there are changes, even though there aren't (e.g. a rebase is impossible).
>How-To-Repeat:
git clone https://github.com/jsonn/pkgsrc (or use cvs) on a case-insensitive file system
>Fix:
Rename one of the two files