Check for capture possibility before expanding

[itswin]

https://jmerle.github.io/koreye-2022/visualizer?input=https%3A%2F%2Fwww.kaggleusercontent.com%2Fepisodes%2F41102668.json

https://www.kaggleusercontent.com/episodes/41102668.json

Step 121.

[itswin]

https://jmerle.github.io/koreye-2022/visualizer?input=https%3A%2F%2Fwww.kaggleusercontent.com%2Fepisodes%2F41128751.json

https://www.kaggleusercontent.com/episodes/41128751.json

Step 86