ok, I made a mistake on SO, any ideas on how to resolve?
I created a tag, called [tag:snap.svg], whereas there already existed a similar one [tag:snap-svg]. I thought it makes more sense since, that's the actual name.
I then modified a question and added the snap.svg tag instead of snap-svg.
I thought I would be able to add a synpynm to the original one, but can't (needs a score of 5).