specific sequence clicking of states with roster can produce a failed state data update

[jsfenfen]

A bit tricky to repeat. The sequence is:

• Click on state results from state results page for a state with a roster.
• Click on state results (at top) for a state without a roster.
• Click back to the original state with roster, the state updates but the race data doesn't.

I.e. go to https://apps.npr.org/elections20-interactive/#/states/ME ; click on another state from the dropdown, then click back to maine. the last update results in maine at the top of the page with borked data at the bottom.