[OSM-talk] temporary=yes tag

[Matias D'Ambrosio]

 While discussing leisure=bullring in the talk-es (spanish speaking list), the 
issue came up of bullrings that are only set up on certain occasions 
(holidays and other special events). This is also common for fairs, circuses, 
etc. So we thought something like a tag temporary=yes/no would be nice for 
them, I searched in the wiki and found nothing of the sort, is something of 
the sort available? opening_hours is not fit for this, obviously. I'm not 
sure "temporary" is the right word (specially since it might give the idea 
that the OSM tag is temporary, which is not intended).