When i use the feature where you hold an item, hold shit, and double click an item to transfer all of that item to or from a container/chest/hopper/etc, it does not work on the 1.12 version of either optifine or the official release. From screen-sharing with my friends, 1.12 will momentarily move the mass quantity of blocks, then move them back into the inventory. This issue is happening to everyone i play with who uses the 1.12 version, however 1.11.2(i believe is what i use mostly) works fine.
Attached are 2 video files, one of the 1.12 version, one of the 1.11.2 version of minecraft attempting the same feat, with different results.