[Gameplay] Indistinct mission criteria

Our current set of missions includes one with three criteria:

• Get a Double Kill
• Get a Killing Spree
• Win a game on Summoner's Rift with more than 15 Kills and/or Assists

I just played a game where I never had a Multi Kill or streak higher than 2 (see screenshots). That should've fulfilled the Double Kill criterion (which it did), but it shouldn't have given me credit for the Killing Spree (but it did). Unless the Killing Spree definition has changed from 3 kills before a non-execution death, that's a bug. And if the definition has changed to only 2 consecutive kills, then it's completely pointless to have two separate criteria that share the exact same trigger.

TL;DR A Double Kill triggers both the Double Kill and Killing Spree requirement for one of the current missions, even though the Killing Spree should only be triggered by three or more consecutive kills.