Bug 416849

SUMMARY
Using a brush tool and using the navigator/ clicking any sidebar tools will lag the usage of [space] or hand tool used to navigate the canvas better, thus will deliberately stain the canvas while trying to scroll down. There is a minimum 3 seconds if waited idly to let the cursor change to hand tool while space is already been pressed.


STEPS TO REPRODUCE
1. using a brush 
2. clicking navigator slider
3. alternating by pressing [space] to trigger hand tool
4. hand tool will not commence, it will go back to brush tool

OBSERVED RESULT
even when [space] had already been pressed, it needs 3 seconds to let it tirgger manually, or else alternating against another tool

EXPECTED RESULT
after the [space] is pressed, the hand tool should immediately trigger, not costing time or worse, smearing the canvas with unintended brush tool

SOFTWARE/OS VERSIONS
Windows: 10 School Version
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION