What is the liability of two retracting witnesses if they claim they intended the testimony but did not know it would lead to capital or maiming punishment?

Primary text

If the witnesses claim they intended the testimony but did not know the legal consequence (death or cutting) and were in a position where such ignorance could be plausible, they owe a weighty indemnity (*Diyah Mughallazha*) from their own wealth. This is considered semi-intentional harm (*Shibh 'Amd*) and is not borne by the *Aqila* (kin group) because it is established by their own admission. If one claims he intended the act and the other claims he made a mistake, the one who claimed intent owes half the weighty indemnity, and the other half the standard indemnity, with no Qisas, as it constitutes a mixture of intentional and accidental harm.