Nested/Deep variables don't resolve in manual intervention description

The nested variable syntax doesn’t seem to resolve correctly in the description field of a manual intervention step.

eg. “Validate that the application #{microsoft.azure.webapp.stagingName} is ready to send live” should evaluate to “Validate that the application mywebsite-staging is ready to send live” however it resolves to “Validate that the application #{mywebsite-[#{name}]} is ready to send live” where #{mywebsite-[#{name}]} is the value of #{microsoft.azure.webapp.stagingName}

I realized that the scope of the nested variable was incorrect. Once changed it works as expected.