hotbar item will drop if touched when charging the bow

Items Drops Auotomatically

Process:
1. Put an item in your first hotbar slot.
2. Put Bow in your second hotbar slot.
3. Charge the bow while at the same time tap the item in first slot (it starts dropping).
4.Then try picking up the item it will drop everytime

Device Model:
Highscreen Pure F

Update1:
It can be reproduced even if just to break blocks