Issues with db overwrites when same person fills out form more than once

Pretty sure this plugin is dead but for reference or maybe some one has fixed this. When a user (logged in or not, does not matter) fills out the same form more than once with persistence enabled the last entry they add will be the only one that makes it to the db. They all get created because they send admin notifications but the next time the fill the form it triggers the delete_lead() function and overwrites their last entry in the db. If I turn the data persistence off on the form I get all entries. I don’t really expect a response just wanted to let people know of this issue incase anyone else is seeing it.