#1406 dragging due time in calendar view jumps to next day

[Kristijan Lenac]

in calendar view when I grab and drag a lower border of rectangle representing a task (due time) in order to extend the task duration for say one hour something strange happens. In the instant I release the mouse, the due date goes in the next day (when only the time should have been modified).
I couldn't reproduce this behaviour in Windows (I tried only once) but it happens in Linux (different Ubuntu variants) regularly.