Finding a spot on the hand that water did not reach during wudu'

Question:
From the questions of this questioner, who used the initials F, F, J as a code for his name, he says: If a person, while performing wudu', washed his hands and then wiped his head, and then found a spot on his hand that the water did not reach, does he wash only that spot, or does he complete the wudu', or does he wash both hands and then repeat wiping the head?

Answer:
If he is still in the state of wudu' and his limbs are still wet, he washes the remaining part of the limb and washes what comes after it. He washes the remaining part of the limb and completes it, then washes what comes after it and completes his wudu'. Yes.