ID 548056 - Editing the Scale and Translation fields of a LocatorList attribute by scrolling or by using the up/down arrow keys doesn't instantly update the View

Problem summary
Editing the Scale and Translation fields of a LocatorList attribute by scrolling or by using the up/down arrow keys doesn't instantly update the View.

Customer reported version
Mari 6.0v2

Customer reported platform
Windows 10

Steps to reproduce

1. Launch Mari.
    
2. Create a Project, such as the Example Project.
    
3. Create a node that has a LocatorList attribute, such as a Projection node.
    
4. In the Node Properties, assign an image to the Projection node so that changes to the values can be noticed.
    
5. Select a Translation or Scale field in the Node Properties.
    
6. Use the up/down arrow key to edit the value. 

Expected behaviour
As soon as the up/down keys are pressed, the View should update using the new value. This is the behaviour that all other number-based node properties have.

Actual behaviour
The user must press Enter or click out of the setting to apply the change to the View. 

Similarly, scrolling to change the value without having the field selected doesn't update the View.

Workaround
Unknown.

Reproduced by support
This bug has been reproduced in:
Mari 6.0v2 - Windows 10 - CentOS 7

Unable to reproduce bug in:
Mari 6.0v1 - Windows 10 - CentOS 7

Earliest version tested
Mari 6.0v1 - This feature did not exist before this version.