# Only the same instance of vcsh that had the working tree fully populated is
# allowed to repopulate it sparsely.
LOCKDIR=/run/lock/vcsh
+
+# If LOCKDIR does not exist it means that the lock is not active so there's no
+# need to do anything.
[ -d "$LOCKDIR" ] || exit 0
LOCKPID=$(cat "$LOCKDIR/pid")