in a sharepoint form i have a multiline textbox that allow to "append changes to existing text".
The problem is that everytime i edit the text in the control and i submit the form, infopath duplicate the history. So it's like i ve inserted twice that text. This happen first time too.
I could notice that the problem do not persist if I use the default insert form instead of the infopath form. So i suppose the problem is on submit and not in visualization.
Following an attached image: image
DO not exist history at column level. It exists just at list level even if it appears like the history can be also at column level.
So, it was duplicate because i did twice the submit of the list.