Disallow saving of nodes that have a query with a wildcard #1461
Description
There is an issue where if a node's query gets updated to have a wildcard, its dimension links are not propagated. This is due to us not being able to infer any associated columns for wildcard queries, which in turn disallows dimension linking.
To prevent this from happening, we should disallow saving of nodes that have a query with a wildcard, at least until we fully support wildcards (#648).