No leaderboard credit if no task status change.
No leaderboard credit if no task status change.

Don't score actions for the leaderboard if the status on the task didn't
change.

Crashfreak/maproulette2,mgcuthbert/maproulette2,mvexel/maproulette2,maproulette/maproulette2,maproulette/maproulette2,Crashfreak/maproulette2,mvexel/maproulette2,maproulette/maproulette2,mgcuthbert/maproulette2