Yes, the latest RC fixes my issue.
Jul 13 2019
I can also confirm it fixed my issue as well.
I believe this was just fixed. Can you download blender 2.80 release candidate.
Here's a quicktime move of me trying to get the toolbar to show up. I can even resize the "invisible" area to no effect.
Also note that I already chose "file-> defaults -> load factory settings" to try to reset.