We are testing the latest stable version of redash (6.0.0+b10818 (7fa6665)
Found a regression when creating a new visualization, to reproduce:
0. Open a new browser tab and log into redash

1. Run a query
2. Create a new visualization
3. The X & Y drop downs are empty
4. When you cancel the visualization creation you see that the query results disappeared

Note - the issue occurs only when you run redash for the first time on a new session