pakmanaged.js
function resolve (value, key) {
          // resolve before/after from root or parent if it isn't present on the current node
          if (!value._parent) return undefined;
          
          // Immediate parent
          if (value._parent._default && value._parent._default[key]) return value._parent._default[key];
    
          // Root
          var root = value._parent._parent;
          if (!root) return undefined;
    
          return root._default ? root._default[key] : undefined;
        }
function resolve (value, key) {
          // resolve before/after from root or parent if it isn't present on the current node
          if (!value._parent) return undefined;
          
          // Immediate parent
          if (value._parent._default && value._parent._default[key]) return value._parent._default[key];
    
          // Root
          var root = value._parent._parent;
          if (!root) return undefined;
    
          return root._default ? root._default[key] : undefined;
        }
Converts 'bef:aft' to { _before: bef, _after: aft } and resolves undefined before/after from parent or root