fix memory leak caused by leftbehind $invalidWidgets references

- ng:switch should not clean up $invalidWidgets
- $invalidWidgets should be clean up after each eval
- add missing docs

1 files changed, 0 insertions, 2 deletions

diff --git a/src/widgets.js b/src/widgets.js
index 127718ce..c1342943 100644
--- a/src/widgets.js
+++ b/src/widgets.js
@@ -324,8 +324,6 @@ var ngSwitch = angularWidget('ng:switch', function (element){
           element.append(caseElement);
           childScope.$tryEval(switchCase.change, element);
           switchCase.template(caseElement, childScope);
-          if (scope.$invalidWidgets)
-            scope.$invalidWidgets.clearOrphans();
           childScope.$init();
         }
       });