Some bindings now broken? M-Up = Workspace Up

After my F42 upgrade the M-Up = Workspace Up / Down and M-C-Up = Send
to workspace up / down key bindings no longer do anything.  They worked
fine in F41.  I did not change any key bindings in the upgrade.

The corresponding left/right bindings still work!  And if I change the
Workspace Up / down bindings to something else (like backslash) they
still don't work.  It's like the actual commands are broken.

Note: A few Fedora versions back (and earlier) the up/down bindings
didn't work either!  One day they magically worked after a Fedora
upgrade.  And now one day they just stopped after an upgrade.

My workspace layout is 2 dimensional, as such:
1 2 3 4
5 6 7 8
9 A B C

For example, when I'm on 6, I should be able to move up or down.

Thanks!

P.S. Is there a "more official" place to post these bugs once I
determine they are indeed bugs?  I hope that the mailing list still
gets the attention of devs.  Otherwise I guess, with a little help,
I'll have to attempt fixes myself & post patches?

-- 
Sawfish ML