BUG #8676: Bug Money JSON

The following bug has been logged on the website:

Bug reference: 8676
Logged by: Anderson Cristian da Silva
Email address: email(at)andersonloyola(dot)com(dot)br
PostgreSQL version: 9.3.2
Operating system: Centos 6.3 (Final)
Description:

Failed to convert money to json EX.:

postgres=# SELECT to_json(a) FROM (VALUES(1000::money)) a(salario);
to_json
-----------------------
{"salario":$1,000.00}
(1 row)

postgres=# SELECT to_json(a)->'salario' FROM (VALUES(1000::money))
a(salario);
ERROR: invalid input syntax for type json
DETAIL: Token "$" is invalid.
CONTEXT: JSON data, line 1: {"salario":$...