I've just tried to add tags to an existing event through event.AddTags method.
If I pass a tag sting with more than one tag e.g. 'music art' everything works
well and the expected response returns. If I reduce the tags to a single tag
e.g 'art' or 'music' I get a 409 response.

I've tried prefixing and suffixing single tags with spaces, but with no luck.
Can somebody check if this is a bug or is there a trick to passing single tags?

Regards....

Andy