FancyZones resizing in certain directions breaks when attached to certain desktop areas

[ZerGo0]

Environment

Windows build number: Microsoft Windows [Version 10.0.18362.356]
PowerToys version: 0.10.0
PowerToy module for which you are reporting the bug (if applicable): FancyZones

Steps to reproduce

Drag a new zone either on the bottom right of your screen or above the taskbar and try to drag the zone either on the left or on top, you can make the zone bigger, but you can't decrease the size. I didn't test it with my taskbar on any other position (like taskbar on the left or at the top), but I'm assuming that it might break it as well. I'm not sure if it is related to the taskbar or the screen, either way, it seems like it is assuming that it can't resize it because it's the edge of the screen.

Expected behavior

Making the zone smaller as expected should work just fine.

Actual behavior

I'm not able to make the zone smaller, only bigger.

Screenshots

https://i.imgur.com/Q1eKh8R.gifv
https://i.imgur.com/ZeJPkxl.gifv

[enricogior]

Hi @ZerGo0
thanks for reporting the issue.
This seems the same issue reported here #409
But you provided more information on how to reproduce it (following your example I managed to reproduce it as well).
We can keep both issues open for now.
Thank you!

[enricogior]

Adding reference #257

[enricogior]

This is now fixed in master and the fix will be available in the upcoming release.