#20 Incorrect conversion of special characters (v2.0.3)

[mak_sym]

When decoding query string certain special characters
in passed arguments such as \n, \t (and so on) are
converted into literal '\n', '\t' (slash + letter).

[Paige Sullivan]

Logged In: YES
user_id=612671

Looking into the problem. Not sure if it's going wrong on
the frontend or backend.