Condition for checking for elements in a spot is fixed and explained, see https://github.com/phetsims/energy-forms-and-changes/issues/39
Condition for checking for elements in a spot is fixed and explained, see https://github.com/phetsims/energy-forms-and-changes/issues/39

phetsims/energy-forms-and-changes,phetsims/energy-forms-and-changes,phetsims/energy-forms-and-changes