Find elements is broken

[kholbekj]

find_elements crashes with

In lib/marionette/src/marionette/session.cr:456:10

 456 | if parent
          ^-----
Error: undefined local variable or method 'parent' for Marionette::Session

Fixing that (by adding parent to parameters) raises a new error because ids are not hooked up right. I think the method needs a look, looks like the "Huge update" in november broke some stuff

[felixding]

Same here. Took me awhile until I found this issue.