Until now, when Shift-clicking the "delete item" X on the side of the player inventory in creative, all slots (including armor and offhand) would be cleared (that was a useful feature). Now in 19w02a doing the same action only clears the hotbar (which can be done by calling an empty hotbar template out of the stored hotbars anyway)! So I see this as a bug and that feature shall be reverted to its state that it had in 1.13.2.
Thanks
RobinDinVienna
I just noticed this too.
I tried various other key combinations of SHIFT+CLICK [X], but i can only assume it is either as bug or they intend to add additional functionality that isn't working.
Ie:
Shift+Click deletes hotbar
Ctrl+Click deletes inventory (not armor/offhand/hotbar)
Alt+Click deletes everything
which i wouldn't mind. that would be an awesome and functional improvement in my opinion.
EDIT: duplicated bug mentions it is fixed with a relog. confirmed. but still not desired behavior.