Punctuation arcs don't automatically get punct label
There used to be some defaults regarding punctuation and other things, now we don't have them.
Is this the one that tried to guess attachments for punctuation, with a keyboard shortcut, written by @mr-martian in like 2018, or is something else?
What do you want the behaviour to be? Just any token whose content is ., ,, ;, !, ?, etc. should get POS of PUNCT and maybe deprel of punct even if not attached (edit: but each of those only if not already annotated; we don't want it overriding some other standard or sub-deprel or something)?
Currently if a word is tagged PUNCT, creating an arc into it will default to the punct label. But it might be nice for the tagging to be automatic as well.