[PROBLEM] volume via rest api doesnt work with multiroom

[Tim Curtis]

The commands work fine on my end

Code:

pi@moode9:~ $ curl -G "http://trx.local/command/index.php" -d "cmd=set_volume+-up+2"
{"volume":"17","muted":"no"}pi@moode9:~ $

pi@moode9:~ $ curl -G "http://trx.local/command/index.php" -d "cmd=set_volume+-dn+2"
{"volume":"15","muted":"no"}pi@moode9:~ $