Selected task to map should be from the priority area of the project if high priority area exists

[anthaas]

Is your feature request related to a problem? Please describe.
Button ‘Map task’ assigns tasks by random despite the priority area set by the project manager. Completing the high priority areas is slower than could be.

Describe the solution you'd like
In the project if there exists at least one priority area to map, the button 'Map task' that assigns tasks for mapping should prioritize selection from the preferred area set by the project manager instead of random assignment.

Additional context
Now the only solution to make mappers to focus on the area with high priority is to ask it in the project instructions or via notification.

[SColchester]

Wow I assumed that the random selection worked to focus on the priority area! I assumed wrong, well spotted @anthaas!