When Using the clone command on repeaters that have any ticks greater than one the new repeaters from the result of the command will show the amount of ticks of the previous repeater but will only act as 1 tick.

To reproduce
-Clone repeaters with ticks higher than one.
-Then power the new line of repeaters, which should result in them all acting as one tick.

Just in case it is asked the command used are
-testfor @e [type=arrow]
-kill @e [type=arrow]
-clone -40 61 -15 -40 61 -2 -40 59 -15