Retouch

[Bishopcolle]

Johnnyg08 says "8-2-ART 6(d) states: that a runner MAY NOT RETURN to touch a missed base or one left too soon on a caught fly ball if:

1. he has reached a base beyond the base missed or left too soon and the ball becomes dead,
2. he has left the field of play, or
3. a following runner has scored."

What is our mechanic when R1 is attempting to steal second base, the pitched ball is nailed to deep left who makes the catch...R1 had attained second base, sees the catch and reverts to first base when the ball goes dead on an overthrow to F3? He MAY NOT RETURN on this play, correct? But he IS returning, so what do we do? What mechanic(s) is correct here?