Moving multiple devices down doesn´t work

[NotHBlocks]

netbox-reorder-rack version

v1.1.3

Python version

3.10

Steps to Reproduce

If I want to move 2 devices with an rack Height from 2 down there will appear an error which says that the spot is already occupied.
pic1 => the spot where the devices are
error_message => Error Message + new spot

Expected Behavior

More than one device can be moved down to a new position.

Observed Behavior

If i am moving both devices down an error will occure. If I am moving just one it will work as expected.

[Azmodeszer]

Can confirm.

[monteroman]

Same issue here. You have to move one, save, then go back and move another and save, etc. That can be painful if you have a lot of devices in the rack.