[GNC] Trading accounts

[Fred Tydeman]

By mistake, I have ended up with the same stock ETF in two different
Trading subaccounts.
  Trading:noLonger:GBTC
  Trading:us:GBTC

When I try to Delete one of those Trading accounts (noLonger:GBTC) and move
the transactions to another Trading account (us:GBTC), those
transactions end up in the wrong account (us_crypto:GBTC; which did not
exist before this action).

When I then tried to Delete (us:GBTC) and move to (us_crypto:GBTC), GnuCash
crashed.

When I restarted GnuCash, and ran Actions:Check & Repair:all,
Trading:us_crypto:GBTC
is gone.  And the transactions using that ETF are back to the original
Trading accounts.

I am running GnuCash 5.16 on Fedora Linux 44