EntityShootBowEvent not cancelling crossbow shooting properly

What behaviour is expected:

What you expected to see
A charged/loaded crossbow should remain charged/loaded with the arrow after a player rightclicks/attempts to shoot with it.

What behaviour is observed:

What you actually saw
The charged crossbow becomes uncharged (not loaded with an arrow).

Steps/models to reproduce:

This may include a build schematic, a video, or detailed instructions to help reconstruct the issue
Cancel the EntityShootBowEvent (calling event.setConsumeItem(false) has no effect), and try to shoot with a loaded crossbow.

Plugin list:

A list of your plugins

Paper version:

Paste the output of running /version on your server WITH the Minecraft version. latest is not a version; we require the output of /version so we can properly track down the issue.

[20:19:14 INFO]: This server is running Paper version git-Paper-325 (MC: 1.16.4) (Implementing API version 1.16.4-R0.1-SNAPSHOT)
[20:19:14 INFO]: Previous version: git-Paper-174 (MC: 1.16.2)

Anything else:

Anything else you think may help us resolve the problem

Start at the EntityShootBowEvent handling and the crossbow shooting path, reproducing the issue by cancelling the event for a loaded crossbow. Verify that cancelling the event leaves the crossbow charged and preserves its arrow, and confirm that event.setConsumeItem(false) does not change the result.