Yes, thank you. This work around works for me too on Plasma5. I was having all kinds of problems connecting with WiFi after the update. I used my phone and found this work around. Now WiFi is connecting as expected.
Edit: OK, I found that there is an issue with this workaround and plasma5. While my connection to the main hotspot is solid, no other WiFi connections now show up in the tray applet, so the only one visible is the one I'm connected to.
The problem is when I take my laptop out of range of my main connection into the areas covered by my WiFi range extender It doesn't show up. I'm, however, able to connect using the Network Connection Editor from the tray applet, but I can see where this would be a problem if I were out at a coffee shop or other public hotspot where I wouldn't be able to see any available connections.
Also there is another minor bug/annoyance, as the WiFi tray applet no longer changes color from green to white indicating an active connection.