When you create resource packs, even more so models, it is very useful to only load a resource pack as FOLDER, so you can actively/live edit files while being ingame at the same time, reload texture packs with F3-T, and see your changes rightaway.

In 16w32b this is not possible, at least not for me with Windows 7, Java 8.101, whereas for a friend of mine who runs Linux it is still possible.

E.g. I changed a lapisblock texture and can only see it when I load the resourcepack as ZIP into my client, but NOT if I load the very same resource pack as (unpacked) FOLDER.

In the 16w32a-snapshot the FOLDER does work for me still, but NOT in 16w32b.

Steps to reproduce
To faciliate it, I attached a lapisblock-only-texturepack as ZIP, there is nothing else in that pack as files than the lapisblock texture, the pack.png (default) and the pack.mcmeta.
Unpack "16w32b-lapisblock-test.zip"
Load only the unpacked folder as resourcepack
Test one time in 16w32a, then in 16w32b.

In 16w32b it won't be displayed (unless apparently you're on Linux OS)?