Bug 515653

SUMMARY
I really don't know why, but the very first Krita 6.0 prealpha carried a bizarre input
bug which is still present in the current beta. 
Bug is as follows : for some unknown reason, the pen click input always repeats
itself twice when you use the stylus. If for instance you want to hide
a layer by clicking on the "eye" icon, it will flick, as if hiding, and showing
itself again. On the menu bars, clicking on a button such as "File", "Edit", "View"...
results in the drop down showing and disappearing quickly. 
Now this problem doesn't occur with mouse input. Stylus only, and is
exclusive to krita 6.0

STEPS TO REPRODUCE
1. In an open document, create multiple visible layers
2. using a stylus, click on the "eye" icon to attempt to hide the layer
3. Try over and over

OBSERVED RESULT
The app never hides the layer because the input repeats itself
twice. Click input seems to repeat itself twice using a stylus. 
And is thus compromised.

EXPECTED RESULT
The click input with the stylus should not repeat itself
at all. 

SOFTWARE/OS VERSIONS
Windows 10 Pro

ADDITIONAL INFORMATION
Tested on a Huion H1061P