Description of problem:
In gedit press Backspace key to delete the whole char,it delete both the whole
char and the letter before it

Version-Release number of selected component (if applicable):
pango-devel-1.22.1-1.fc10.i386
pango-1.22.1-1.fc10.i386
pangomm-2.14.0-2.fc10.i386

How reproducible:
always

Steps to Reproduce:
1.In gedit input dabenാ
2.Press the cursor to the right and press Backspace key to delete the whole char 
ാ
  
Actual results:
It delete the whole char and the letter n when pressing the Backspace key.

Expected results:
It should only delete the whole char.

Additional info:
Dependent Vowels all have same problem
1 U+0D3E  ാ 
2 U+0D3F ി 
3 U+0D40 ീ 
4 U+0D41 ു 
5 U+0D42 ൂ 
6 U+0D43 ൃ 
7 U+0D46 െ 
8 U+0D47 േ 
9 U+0D48 ൈ 
10 U+0D4A ൊ 
11 U+0D4B ോ 
12 U+0D4C ൌ