added handling for special case of clip area when blocks overlap in beaker, see https://github.com/phetsims/energy-forms-and-changes/issues/114
added handling for special case of clip area when blocks overlap in beaker, see https://github.com/phetsims/energy-forms-and-changes/issues/114

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