The version number that appears below a world name has strange text. When making an nbt for an item I would have to do {display:{Name:"

"}} instead of {display:{Name:"Name"}}, and an entity would have to have {CustomName:"

"} instead of what it is normally as well. I am unable to detect names with [name=""] with or without quotation marks, and have to use nbt.

If you create an item using "" instead of

it will crash the game, and the only way to be able to enter the world again is by deleting or editing player data.

I am unable to find others reporting this as a bug or find confirmation that this is part of the snapshots, but I am assuming this is a bug due to dinnerbone's tweet saying that the display of the version was a bug.