In this section " double liability" means the double liability of the wrongdoer which can arise—
In proceedings to which any two or more claimants are parties, the relief shall be such as to avoid double liability of the wrongdoer as between those claimants.
On satisfaction, in whole or in part, of any claim for an amount exceeding that recoverable if subsection (2) applied, the claimant is liable to account over to the other person having a right to claim to such extent as will avoid double liability.