Fix resource delete, trash restore, and nested system pages - #8

Fix resource delete, trash restore, and nested system pages#8

Ibochkarev wants to merge 4 commits into

3.xmodx-pro/revolution:3.xfrom

fix/14167-form-delete-cascade-childrenmodx-pro/revolution:fix/14167-form-delete-cascade-childrenCopy head branch name to clipboard