'/scoreboard players get' shows message with '%s' when no score is set

The bug

When trying to do /scoreboard players get on an entity/player with "no score", it shows this:

Can't get value of %s for %s, none is set

How to reproduce

1. Create a new scoreboard objetive

   /scoreboard objectives add foo dummy

2. Get score from the player

   /scoreboard players get @s foo