Kind of duplicated by MC-93855 - which is now marked as "resolved" despite the bug still existing in the latest versions/snapshots?
Skeletons' bodies are limited to a 180 arc when in boats, but can still fire backwards at mobs/players (which also causes a weird arm/bow-loading animation)
Skeletons will also attempt to shoot at players boarded in the same boat as them, however the arrows only appear briefly behind their heads [?] without damaging the player in the boat or sticking into any nearby blocks.
How to reproduce:
1) Spawn a skeleton in a boat
2A) spawn a baby turtle somewhere behind the skeleton OR enter survival mode and stand behind it
2B) Board the boat with the skeleton and enter survival mode
Related issues
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Duplicate of MC-137793

I haven't seen any reports of the 2nd half of my post (skeletons being unable to shoot players that are boarded in the boat with them) - seems like unintended behavior because of the arrow graphic glitch and the fact that most other mobs can attack you from boats.
Should I make a separate report for that part?
If it's not already covered by (or a direct consequence of) MC-137793, yes, please do.
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