Grep - possible bug with escaped brackets

[Ayval Ron]

Hi,
 
I am using grep (or sometimes egrep) to validate various regular
expressions, and have come across a situation that looks like a bug.
Example below:
address@hidden root]# grep -V
grep (GNU grep) 2.5.1
 
address@hidden root]# echo "try[" | grep -e "try[\[]"
try[
(matches)
address@hidden root]# echo "try]" | grep -e "try[\]]"
address@hidden root]#
(no match)

Seems that escaping the closing bracket the should be matched does not
work, and that it is treated the same as a non-escaped bracket.
 
1. Is this bug documented?
2. Is it fixed somewhere?
 
Thanks,
               Ayval
 
        
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