Better avoiding of stale element exception

cms/djangoapps/contentstore/features/component_settings_editor_helpers.py

@@ -114,16 +114,20 @@ def revert_setting_entry(label):
 
 @world.absorb
 def get_setting_entry(label):
+    def get_setting():
         settings = world.browser.find_by_css('.wrapper-comp-setting')
         for setting in settings:
-        if world.css_value('.wrapper-comp-setting .setting-label') == label:
+            if setting.find_by_css('.setting-label')[0].value == label:
                 return setting
         return None
+    return world.retry_on_exception(get_setting)
 
 @world.absorb
 def get_setting_entry_index(label):
+    def get_index():
         settings = world.browser.find_by_css('.wrapper-comp-setting')
         for index, setting in enumerate(settings):
-        if world.css_value('.wrapper-comp-setting .setting-label') == label:
+            if setting.find_by_css('.setting-label')[0].value == label:
                 return index
         return None
+    return world.retry_on_exception(get_index)