633440 - Case-insensitive find operation treats keywords in English, does not find Turkish "I" when searching for "ı"

Status: RESOLVED DUPLICATE of bug 812837

(Firefox :: General, defect)

Description

[Alaattin KAHRAMANLAR]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; tr-TR; rv:1.9.2.13) Gecko/20101206 Ubuntu/10.10 (maverick) Firefox/3.6.13
Build Identifier: Mozilla/5.0 (X11; U; Linux x86_64; tr-TR; rv:1.9.2.13) Gecko/20101206 Ubuntu/10.10 (maverick) Firefox/3.6.13

If you search keyword "begin" (incasesensitively) within the page via utility opened by "CTRL + F", it locates both "find" and "FIND" words within the page.

On the other hand, if you search keyword "tasarı" in a Turkish webpage ,which is declared to be Turkish in the source code, it doesn't locate word "TASARI". However, lower case representation of letter I is not "i", but "ı" in Turkish.

Reproducible: Always

Steps to Reproduce:
1. Go to a Turkish webpage, for example http://goo.gl/wutCB
2. Go to Edit > Find, or just press Ctrl+F
3. Search for "millet" within the page (ignoring case), this should also locate occurences of "MİLLET" since "millet" is the lower case representation of the  capital word "MİLLET"
Actual Results:  
Search located occurences of "millet" and "Millet" words, but didn't locate "MİLLET" words.

Expected Results:  
In Turkish the small case letter "ı" is represented as "I" in caps and the small case "i" is represented as "İ" in caps. Therefore expected result is searching form keyword "millet" should locate "MİLLET" as well.

It is strange that I'm using Turkish Firefox. At least, Turkish Firefox should behave accordingly.