It's not really a 1.13 thing. That kind of stuff is pretty common with world generation in every version I've played. The water doesn't flow because there are no block updates. Place or break a block next to the water and it will flow.
Erm, didn't they fix that in 1.9 when they made water blocks self-update (the change that destroyed floating water blocks)?
My 1.8 wheat farm that uses floating water blocks went through 1.9-1.12.2 intact. The water still floats as long as I don't update any adjacent blocks. As far as I know the "fix" only affected ice turning into water. Stuff like the picture in the Op still happens.
Java's 1.13 is in pre-10 and I still found this water generation glitch in survival mode...
It's not really a 1.13 thing. That kind of stuff is pretty common with world generation in every version I've played. The water doesn't flow because there are no block updates. Place or break a block next to the water and it will flow.
Erm, didn't they fix that in 1.9 when they made water blocks self-update (the change that destroyed floating water blocks)?
My 1.8 wheat farm that uses floating water blocks went through 1.9-1.12.2 intact. The water still floats as long as I don't update any adjacent blocks. As far as I know the "fix" only affected ice turning into water. Stuff like the picture in the Op still happens.