[Tagging] Historic building usage

[marc marc]

Le 29. 03. 18 à 15:38, Dave F a écrit :
> On 28/03/2018 23:02, Tom Pfeifer wrote:
>> On 28.03.2018 23:20, Dave F wrote:
>>> I've a building to tag which used to be a train_station 
>>> but currently has a different use.
>>
>> The building=train_station tag remains, since it describes the 
>> building type, independent of the current usage.
> 
> No. The building tag is for current usage. 

that is not the common meaning. see the 2 first lines of
https://wiki.openstreetmap.org/wiki/Key:building
The common meaning is like Tom said.
building for what the building look like
building:use and/or another key for the current use