cannot add new term requests to the same 'base' term

[ValWood]

So if I want to add multiple child terms to the same term, I am not allowed.
There should be an exemption if there is a term request.
(I wanted to request terms for different chemicals)

[kimrutherford]

I've fixed that in the test Canto.

I will update the main Canto with the pending changes once we're happy with:

• Check for allele with same description when entering in Canto #2841

[kimrutherford]

I will update the main Canto with the pending changes once we're happy with:

That change has been in the main Canto for a couple of weeks. I'll close this but please re-open if you see any problems.