[Krename-users] Bug with special characters in a file when using "Insert Part of Filename..."

[TS <ete...@gm...>]

(This is with using v4.0.4)
When using "Insert Part of Filename..." under the advanced renamer,
KRename has problems with at least the following special characters
when in file names: #$[]%&*\
Instead of seeing those characters as a single character, it sees them
as two characters, such as '[' being seen as '\['. This screws up the
output names.

A couple examples using "for example [[[this is ]a test file.txt" to
illustrate the problem follows:

[$1;13] gives:
"for example \"
expected:
"for example ["

[$16-[length]] gives:
"[[this is ]a test .txt"
expected:
"this is ]a test file.txt"

This bug makes KRename useless for me at times, and it would be nice
if it was fixed. Also, bug 3018407 on the bugtracker appears to be the
same issue.