Snapshot incompatible with realms message is missing

When clicking on Minecraft Realms from the main menu in 16w32a, the message that the snapshot version is incompatible with Realms does not display correctly. It seems that translations are not set for the following:

mco.client.incompatible.title
mco.client.incompatible.msg.line1
mco.client.incompatible.msg.line2
mco.client.incompatible.msg.line3
mco.error.invalid.session.title
mco.error.invalid.session.message