Mega menu settings bumped when switching items on admin panel

[Dimidel]

Hi and thanks for this awesome plugin.
I'm encountering an issue, on the admin side, when i'm clicking on items to switch from one to the other :
Indeed, as I've configured a mega-menu setting on an item, if I switch from this item to another one then I come back one him, the whole setting is bumped. To prevent this issue, I've to save the mega menu before switching items, even if I haven't edit the setting of this item.
Best regards and sorry for my poor english.