Rich-text card rename not accepting dashes+issue

There are still problems with creating new cards that then render with underscores in the spaces (is this documented somewhere else - I was looking for another ticket but didn't find), and this issue seems somehow related. I renamed a card that had rendered the spaces with _ and removed the dashes (-), the rename is working for removing the underscores and rendering spaces, but I've tried a few times to reinstate the dashes, but it's not working. The name I'm going for is: Global Reporting Initiative+Hazardous Waste Recycled G4-EN23-a