iss value

~~In the SIOPv2 spec the iss value possibilities were changed from a static https://self-issued.me/v2
(see PR for the change https://bitbucket.org/openid/connect/pull-requests/120). Basically the iss is the sub for a SIOP.
See https://openid.net/specs/openid-connect-self-issued-v2-1_0.html#name-self-issued-id-token~~

edit: the above change is in the latest SIOPv2 specs.

The first implementers draft of SIOPv2 ID1 (https://openid.net/specs/openid-connect-self-issued-v2-1_0-ID1.html) lists the iss claim as ` https://self-issued.me/v2`

In this profile the value is https://self-issued.me/v2/openid-vc with requirement:
`iss claim MUST be https://self-issued.me/v2/openid-vc.`
(see https://identity.foundation/jwt-vc-presentation-profile/#id-token-validation)

Is there a specific reason for this value change vs the SIOPv2 ID1 spec?