ID 405502 - Colors palette continues to resize even after letting go of the corner - MATE specific

Problem summary
Colors palette continues to resize even after letting go of the corner - MATE desktop manager specific 

Parts or sections of the palette are changing shape and moving independently of the whole palette.

Only affects the Colors Palette.

Customer reported version
4.5v2

Customer reported platform

CentOS 7 + MATE 1.16.2

Steps to reproduce

1) Open Mari and an example project 

2) Open the Colors Palette and try to resize it 

Expected behaviour
Colors Palette should stop resizing once the corner has been 

Actual behaviour
Colors palette continues to resize even after letting go of the corner

Workaround
Use other supported desktop managers. More information regarding which desktop managers Mari supports can be found here: 

Q100470: Supported Linux desktop managers for Mari

Not reproduced by support