In attempting to pick up the ball the second time, the ball flies out of the glove towards the dugout, so you do not have to make a call in the first place. When the runner immediately returned to first base and no tag attempt was made, you now have a runner on first just like normal and no call is needed for that either, (when the pitcher throws to the first baseman on a pick-off and the 1st baseman makes no attempt whatsoever to tag the runner, no call by the umpire needs to be made). So, it is a weird play that technically needs no calls for either part of the play.
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