Ctrl-U on PSET in the code editor gets you a description for SGET/SSET.

Hey!

How to replicate:
If you enter CONFIG, then enter CONFIG THEME, then press up twice and execute CONFIG command without retyping it, it will execute CONFIG THEME again instead.

Expected behavior:
Execute CONFIG and not CONFIG THEME.

If you do the same, but then retype CONFIG from your keyboard, it opens CONFIG properly; even if you use UP twice, delete a single character and then retype it, it will work properly. It glitches out only when you're repeating the command while recalling it with UP and not altering it.