Changes

Summary

Made a few methods in MessageImpl synchronized due to concurrent calls (commit: fc1767a) (details)

Commit fc1767a4d409d45428802757a95b3ec2b6473081 by Florian Spieß Made a few methods in MessageImpl synchronized due to concurrent calls breaking getContent (commit: fc1767a)
	src/main/java/net/dv8tion/jda/core/entities/impl/MessageImpl.java (diff)