When you enable the "Programmer Art" resource pack, honey bottles don't change to the old bottle texture. See image below.

How to reproduce:

1) Enable the "Programmer Art" resource pack

2) Go to a world in 19w34a

3) Take a glass bottle or a water bottle and compare it with a honey bottle.

What I expected to happen was:

The honey bottle would have the old bottle texture.

What actually happened was:

The honey bottle hadn't changed texture at all.