Affects Version/s: Minecraft 1.8.9, Minecraft 16w03a, Minecraft 16w04a
Fix Version/s: None
Environment:Windows 7; Java 64bit
So I was trying some things with execute and scoreboard, and I noticed some wrong behaviour regarding execute commands that have a scoreboard command in them.
When you stand very closely to an entity, and you perform an execute-scoreboard command on it, the @e[c=1] selector will prefer you (the player) over itself. When you use an execute-say the @e[c=1] just selects itself, as expected.
Here are the commands I ran to prove the bug:
execute @e[...] ~ ~ ~ scoreboard players set @e[c=1] testObj 1
The scoreboard value of you (the player) for testObj gets set to 1
execute @e[...] ~ ~ ~ say @e[c=1]
The entity says it's own name.