Belarus currency weirdness

The current Belarus setup has a ridiculous currency named "Ruble (1993-2016)".

This is silly for two reasons...
1) There wasn't a single Belarussian currency between 1993 and 2016. There was the first Belarussian ruble (BYB) from 1993 until 2000, and the second Belarussian ruble (BYR) from 2000 until 2016. (This doesn't appear to have mattered for the commemorative coins.)
2) During the 2016 changeover, all the pre-2016 commemoratives were explicitly confirmed to be legal tender for their face value in the new currency (that is, they were not demonetized), and in fact all the ongoing series had continued on as if nothing changed. So there's no reason to separate it from the post-2016 ruble.

My proposal (probably also not perfect):

Currency 1: "Ruble (2016-date)". For the circulating coins, and any circulating commemoratives if such ever appear. Will of course be replaced if another currency reform happens.
Currency 2: "Commemorative ruble (1996-date)". For the obvious non-circulating commemoratives, which have been a continuous series ever since 1996. Of course if any obvious clean breaks happen in the commemorative series, the new commemoratives would go in the above currency.

Alternate proposal: one currency for everything, "Ruble (1996-date)" (or similar).

(Fallback proposal: three currencies, 1993-2000, 2000-2016, and 2016-date. But the current situation legitimately makes no sense.)

Having looked at the catalogue and your evidence I agree how it is makes little sense, but I don't like your first suggestion of separating it into circulating and non circulating coins; after all, a currency usually has both.

The second proposal also makes little sense to me, since having all coins in the same currency minted through the upheavals you mentioned is like if all the 1871-1948 Germany Mark coins were in the same currency.

But the third proposal sounds good to me. I'd support that one.

#3 is the correct one. In terms of currency, there were 3 rubles in the country since 1993.

Fallback sounds good.
With maybe a comment on the coin page with regards to circulation/not after 2016 for commemorative issues.

Loruca