Two flags si_LK.gif and si_lk.gif after update Joomla from 3.4.8 to 3.5.0 on linux server

[pitu-sk]

Steps to reproduce the issue

Update Joomla from 3.4.8 to 3.5.0 on linux server and look for images in /media/mod_languages/images directory with flags

Expected result

You can see only si_lk.gif file in /media/mod_languages/images directory for language Sinhala - SRI LANKA.

Actual result

You can see both old si_LK.gif and new si_lk.gif files (flags) in /media/mod_languages/images directory

System information (as much as possible)

php: Linux apache24-php55-4 3.14.27-031427-generic #201412170558 SMP Wed Dec 17 11:00:01 UTC 2014 x86_64
dbversion: 5.5.45-MariaDB-log
dbcollation: utf8_general_ci
dbconnectioncollation: utf8mb4_general_ci
phpversion: 5.5.21
server: Apache
sapi_name: apache2handler
version: Joomla! 3.5.0 Stable [ Unicorn ] 21-March-2016 22:00 GMT
platform: Joomla Platform 13.1.0 Stable [ Curiosity ] 24-Apr-2013 00:00 GMT
useragent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:45.0) Gecko/20100101 Firefox/45.0

Additional comments

I discovered problem when I sync files from case-sensitive Linux server to non-case-sensitive Windows PC.

[andrepereiradasilva]

yes the lowercase has added in f283733

Joomla didn't remove the old (with uppercase) for Backward Compatibility (BC).

Is not an error but you can delete the uppercase one. Joomla will not put it there again.

[Bakual]

Closing since it's expected behavior.