Check for 'amount' field in template price change.
Check for 'amount' field in template price change.

'monthly_price' and 'amount' fields both affect price.
Closes [WAL-390]

opennode/nodeconductor-assembly-waldur,opennode/waldur-mastermind,opennode/nodeconductor-assembly-waldur,opennode/waldur-mastermind,opennode/waldur-mastermind,opennode/waldur-mastermind,opennode/nodeconductor-assembly-waldur