When the creeper explodes, the chat box sometimes pop up "[Markers] hi"

[RayySummers]

When the creeper explodes, the chat box will always pop up "[Markers] hi" when the exploded missing block needs to be filled but is occupied by the player.

[MoritzScheerer]

The origin of the error is "do_drop.mcfunction". "say hi" is not a comment like it is in "explode_bed.mcfunction".