Fix unintended behavior change in elementtree introduced in #114269
Bug report
Bug description:
As it was discussed here, after merging of #114269 it.root is no longer None once an iterator is created. There was no intention to change this, it should be reverted.
Meanwhile, I think it will be good to add test for root attribute.
- Right after function returned iterator:
it.rootmust beNone. - After iterator exhaustion:
it.rootmust be an instance ofxml.etree.ElementTree.Element.
CPython versions tested on:
CPython main branch
Operating systems tested on:
Other