Resizing an item does not place the resized item in the exact time slot

[pd-SYovchev]

Resizing an item does not place the resized item in the exact time slot.
For example I have an item that starts from 5am to 10am. When I move it multiple times and then resize it, the start time and end time of the resized item is not correct.
Here is demo:
React
Preact
Browser: Chrome
Library: Preact
It seems that the problem only occurs with the Preact version