Fixed weight test so it won't behave differently on firefox

cms/djangoapps/contentstore/features/problem-editor.py

@@ -130,11 +130,7 @@ def set_the_weight_to_abc(step, bad_weight):
     world.verify_setting_entry(world.get_setting_entry(PROBLEM_WEIGHT), PROBLEM_WEIGHT, "", True)
     world.save_component_and_reopen(step)
     # But no change was actually ever sent to the model, so on reopen, explicitly_set is False
-    # On firefox with selenium, it will register as still being a change despite the weight remaining blank
-    if world.is_firefox():
-        world.verify_setting_entry(world.get_setting_entry(PROBLEM_WEIGHT), PROBLEM_WEIGHT, "", True)
-    else:
-        world.verify_setting_entry(world.get_setting_entry(PROBLEM_WEIGHT), PROBLEM_WEIGHT, "", False)
+    world.verify_setting_entry(world.get_setting_entry(PROBLEM_WEIGHT), PROBLEM_WEIGHT, "", False)
 
 
 @step('if I set the max attempts to "(.*)", it displays initially as "(.*)", and is persisted as "(.*)"')
@@ -228,7 +224,8 @@ def set_weight(weight):
     index = world.get_setting_entry_index(PROBLEM_WEIGHT)
     world.css_fill('.wrapper-comp-setting .setting-input', weight, index=index)
     if world.is_firefox():
-        world.trigger_event('.wrapper-comp-setting .setting-input', index=index)
+        world.trigger_event('.wrapper-comp-setting .setting-input', index=index, event='blur')
+        world.trigger_event('a.save-button', event='focus')
 
 
 def open_high_level_source():