"sidebar" disappears when any score is reset, even if not displayed there

steps to reproduce:

/scoreboard objectives add one dummy
/scoreboard objectives add two dummy
/scoreboard objectives setdisplay sidebar two
/scoreboard players set @s two 1
/scoreboard players set @s one 1
/scoreboard players reset @s one

The "two" score on the sidebar will be hidden, even though it is not the score that was reset.