Hi,
I have created a infopath 2013 form to submit to an online 365 sharepoint site. This form has a non repeating part that the user fills in (meeting title, attendees etc.), then a repeating section that tasks are filled into. The form submits perfectly to the required library on sharepoint and can be opened and the contents edited and resubmited as the next version.

Repeating Section
I followed the excellent tutorial by Hillary to create a list from this form, which I would then use to populate a task list.
This works, but I am having a major problem:
If the form is opened from the library and an action modified (due date changed etc.) or action added, then on the resubmit all the actions are repeated with a new ID. Is there any way to prevent this and only allow the updated action to be modified? On the library that the form is resubmitted to the form shows the correct revision increase and only the actions changed or added are effected.