To be more specific, when the Ender Dragon is perched on the exit portal, the arrows will catch on fire when shot at the Ender Dragon upon bouncing back.
There was a similar issue like this MC-85910, however according to Dinnerbone, that issue was closed as "Working As Intended". So I'm wondering if this is also intended as well.
Linked issues
is duplicated by 3
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Comments 2
Reopening since MC-85910 was reopened.
Yes, this is intended.