since Any also represents List or anything else really.
I thought that it might be used somewhere in the meditor to edit dandiset metadata
but it seems that nothing of that type propagated into dandiset metadata so
it should not be effected

=== Do not change lines below ===
{
 "chain": [],
 "cmd": "git-sedi 'Union\\[Any, List\\[Any\\]\\]' Any",
 "exit": 0,
 "extra_inputs": [],
 "inputs": [],
 "outputs": [],
 "pwd": "."
}
^^^ Do not change lines above ^^^

…s) for Locus and Allele

So far I see no values with such data types used at all in dandi archive so we should not
break anything

An alternative would be to just make it a List[Identifier] always and not
bother allowing for the dance of singular-vs-plural.

That would avoid Union of a list with non-multivalued identifier. And we already have
data with string value describing the genotype -- it is not really an identifier!!!