[Tagging] With leisure=common deprecated, Senegal & Mali need a replacement

[Jean-Marc Liotier]

Here is a 360° picture of a square in Dakar: 
https://www.mapillary.com/map/im/jYNQFMwHiNEZRCnpi71heA - larger than a 
street (it occupies a whole city block), used as a multipurpose common 
area (pickup soccer games are a staple but parking or lounging around 
also occur, and the occasional popular event) and usually surfaced with 
sand or whatever the ground is.

We have long tagged it leisure=common (389 ways in Senegal and 486 in 
Mali according to http://overpass-turbo.eu/s/TqN) - which is a bit of 
stretch from the British legal definition, but worked well enough and 
did not conflict with its British usage. But leisure=common is now 
deprecated

So, what should we use instead ? 
https://wiki.openstreetmap.org/wiki/Tag:leisure%3Dcommon suggests using 
leisure=park - which isn't too much of a stretch functionally but evokes 
greenery that does not occur here (though British commons are just as 
green and we were happy with leisure=common)... Any other ideas ? Or I'm 
going to use leisure=park+surface=sand !