Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
CraftBukkit Changes:
95d233dc SPIGOT-1807: PlayerTeleportEvent is called twice
Spigot Changes:
b0819150 PR-116: Slightly reduce item merge radius in Y-direction
ef2aa765 PR-119: Fix off-by-one and allow disabling max-tnt-per-tick option