# apply the patch to any project, where `PriorityHelper` is being used for a custom unit
# unregister `EPriorityHelper` (only if present on that project)
# add 3 items to the grid
# add new item at the beginning of the list
# confirm, that no duplicate priorities were created
# add new item in the middle of the list
# confirm, that no duplicate priorities were created
# add new item at the end of the list
# confirm, that no duplicate priorities were created