It wouldn't be defaulting on the debt. It would be repaying the debt with a devalued currency. Paid in full.
IIRC Turkey actually did revalue their currency the same way a number of years ago. Recall issued currency and replace it with smaller denominated currency.
No. Paying back a $10,000 debt with $100 is defaulting on your debt.
Recall issued currency and replace it with smaller denominated currency.
Currency and bonds are not the same thing.