Roots absorb the water a plant needs. When they are disturbed, especially the younger tips where most water is taken in, it takes some time to re-establish full water-absorbing ability. As Jon said, put it in the shade for a few days so it will lose less water (that it's now having difficulty taking in).
If it were my plant, I'd probably also flush the roots with water to get rid of some of that fertilizer, then let it drain well. Never apply fertilizer to plants with less than healthy roots - like cuttings or something just transplanted or root pruned. Your leaves and fruits look as if they have been 'burned' either from too little water (from the pruned roots) or too much fertilizer, or in this case, both.