Unlock locked Occurrence

If an occurrence is locked, it might be related to the user rights. Read more: https://drofus.atlassian.net/wiki/spaces/DV/pages/1346372516

Sub-occurrences (the sub-item of an item at the occurrence) might also show as locked since the relationship between the item and the sub-items is defined on the item and can not change. The exception is for when the sub-item is defined as a property Read more: https://drofus.atlassian.net/wiki/spaces/DV/pages/2347433993

A sub-occurrence related to a child item can be swapped to define a unique sub-occurrence condition. See more: https://drofus.atlassian.net/wiki/spaces/DV/pages/2603581441