Revision of a course : how to keep the same Manifest ?

Hello, I'm getting the same issue... years later from when this thread was first started. My issue is worse... we're using SumTotal LMS and it won't let me update the project file because of this message... "The upload was unsuccessful because there are differences between the current and replacement files in the SCORM manifest structure"... in looking through the thread, one fix was to just copy and paste the original manifest file into the newer version (where all we did was correct one of the Knowledge Check questions). But unfortunately, we've already deleted the original file and all we have is the updated SCORM file. So we have nothing to refer to even if we wanted to copy and paste the original manifest file into the newer version. Help?