challenges/computing-101/nibbling-on-numbers/decoding-hex incorrect feedback

[g-vernon]

Apologies if there is an issue template I should be following, I don't see one.

I tried converting from decimal instead of hex and triggered some incorrect feedback, i.e.

Behaviour seen

ubuntu@nibbling-on-numbers~decoding-hex:~$ /challenge/convert
Binary, hex, and decimal are just different ways to write the same number.
I'll show you 3 values in hexadecimal; write each one back to me in binary.

Value 1 of 3 (in hexadecimal):  23
  the same value in binary > 00010111
  Not quite --- in binary that value is 00100011.
  Try this conversion again.
  the same value in binary >

Expected behaviour

ubuntu@nibbling-on-numbers~decoding-hex:~$ /challenge/convert
Binary, hex, and decimal are just different ways to write the same number.
I'll show you 3 values in hexadecimal; write each one back to me in binary.

Value 1 of 3 (in hexadecimal):  23
  the same value in binary > 00010111
  Not quite --- in hex that value is 17.
  Try this conversion again.
  the same value in binary >