Whenever a group share is created after a direct share, the stime order
needs to be properly considered in the repair routine, considering that
the direct user share is appended to the $subShares array and breaking
its order.
Pick the most recent subshare that has no parenthesis from duplication
which should match whichever name the user picked last. If all
subshares have duplicate parenthesis names, use the least recent group
share's target instead.
The repair step was a bit overeager to skip repairing so it missed the
case where a group share exists without subshares but with an
additional direct user share.
