the menu order is not being updated when you drag and drop posts. #129
Description
I have been having an issue where the menu order is not being updated when you drag and drop posts.
What I discovered is that, in my case, the menu_order field for the first four posts had a zero value rather than the correct menu_order and then correct values started from the 5th post with the correct menu_order value, i.e. 0, 0, 0, 0, 5, 6, 7, 8, 9 etc.
Once I had manually altered the values in the database to the correct values the plugin was then able to correctly manage the update using drag and drop.
Can the plugin be updated so that it is able to correct any zero values it finds rather than failing to update?