[MC-128695] Firework Rockets don't boost elytra

When airborne with the elytra, using fireworks does not give the player any boost

What I expected to happen was...:
On right-click, the rockets should have given a boost to the user.

What actually happened was...:
The firework flies up into the air as is it were used on the ground, without boosting the player

Steps to Reproduce:
1. Equip an elytra in survival or creative.
2. Obtain firework rockets from the creative menu or using /give
3. Begin gliding and right click with the fireworks.

Linked issues

duplicates 1

MC-111480 Firework boosting doesn't work in the first world loaded after a game start / if player has entity id 0 Resolved

Comments 1

[Bot] Arisa 2018-04-19T22:09:57Z

We are unable to diagnose your issue due to the lack of proper debug information. Please review the guidelines before reporting issues.
In case of a game crash, please also attach the crash log from [minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/guides/finding-minecraft-data-folder/].

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