Greetings Sir/Mam
The Summary:-
Items can enter the player inventory when the whole slots are full.
How To Reproduce:-
Step 1:- Be In Creative Mode.
Step 2 :- Fill the whole player inventory with any items (Stackable/Non - stackable).
Step 3 :- After filling the whole player inventory, go to the creative menu.
Step 4 :- Throw out any block or item to the ground.
Step 5 :- Walk towards the item or block to pick it up.
Observed Results:-
The block/item enters the player inventory when there is no remaining slots.
Excepted Results:-
The Item/block should stay on the ground when the player walks towards it.
I have a video proof of this bug in this ticket, hoping this information is helpful to fix the bug.
Thank You.
Thank you for your report!
However, this issue has been closed as Working as Intended.
If you need help or have a suggestion you might like to follow a link below.
(See also MC-8409)
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki