Not possible to click on overlapping shapes

[giulianovarriale]

When multiple polygons overlap, clicking on a smaller polygon could select the larger polygon instead. The sortFeatures function was intended to sort polygons by area (smallest first), but area.geometry() is being called with a GeoJSON Feature wrapper instead of the raw geometry object. The area result ends us being always undefined and the sorting logic to fail.

Fix proposal
#1539

Steps to reproduce:

• Draw a large polygon
• Draw o smaller polygon in the middle of the larger polygon
• Select the larger polygon
• Deselect the larger polygon
• Click on the smaller polygon

Expected result

• Smaller polygon is selected

Actual result

• Larger polygon is selected

Video

before-fix.mov