Bukkit/CraftBukkit — pull request #975 by kellerkindt (2013-01-01 14:32:05+00:00)
Title: Update src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaFirework....

...java

Serialize the FireworkEffect on the serialization of the FireworkMeta,
so the returned Map is filled completely with serialized data.