IVE: Import does not check for duplicate names in nested components
In principle the tool does not allow to do that, but when a nested component is imported, there seems to be no check for name duplicates
To reproduce, I exported one of the blocks, then I deleted it from the diagram, saved/closed, reopen, reimported the block I just exported, and it did not raise any error, while it contains some function names that were already there in another nested block of the system