play <collection> ignores <collection> and play all music on alexa

[hyzhak]

steps to reproduce:

play seventy eighties

[shashaBot]

@hyzhak I'd like to take this issue if someone is not already working on it :)

Edit: I missed that you self assigned this. But do let me know if I could contribute to the solution in some way. I'd be glad to do it. I have worked with alexa skills and dialogflow but I might need some help with the internet archive codebase.