learned labels work

Oh! They do work! Tags or labels in the blogger back-end seem fine! Even though the interface no longer shows the check list and (initially) says "No matching suggestions," the tags still work! 

If you type into the text box above, they appear. Whew. Still there, still work, don't have to recreate them.

It's still flawed because you don't see them listed which is disconcerting. And you don't know how they're spelled so you have to go from memory.

Once you enter one, the prompt or message changes to "Include more letters to see label suggestions."

Pfft.