Watch out for nets between foundations: they will trap you and you underwater and you will die under the foundation.
But you can use some hacks to recover it, just check out youtube to how. Developers, if you're seeing this, DON'T FIX JUST THIS because it's your fault who cannot come with brilliant ideas to keep people from bugs and they deserve to recover death from bugs.
I've never had an issue jumping back out of the water if I accidentally fall in a net...
Between foundations. You will fall in and get stuck. The fact you never did so doesn't make it's gone.
If the net is next to another net/water block, this is not relevant.
how do you jump out of the water?