ReturnOAuth2Error on RedeemRefreshToken does not throw error and outputs 2 refresh token bodies

[LiamHall]

I have attempted to use the following technical profile on token refresh journey:

			<TechnicalProfile Id="ReturnOAuth2Error">
				<DisplayName>Return OAuth2 error</DisplayName>
				<Protocol Name="OAuth2" />
				<OutputTokenFormat>OAuth2Error</OutputTokenFormat>
				<CryptographicKeys>
					<Key Id="issuer_secret" StorageReferenceId="B2C_1A_TokenSigningKeyContainer" />
				</CryptographicKeys>
				<InputClaims>
					<InputClaim ClaimTypeReferenceId="errorCode" />
					<InputClaim ClaimTypeReferenceId="errorMessage" />
				</InputClaims>
			</TechnicalProfile>

When this technical profile executes it also executes the JwtIssuer technical profile and I am left with the following body when I would expect an error to be returned:

{
	"id_token": "removed-for-demo-purposes"
    "token_type": "Bearer",
    "not_before": 1721919362,
    "id_token_expires_in": 3600,
	"profile_info" : "removed-for-demo-purposes"
    "scope": "offline_access openid",
	"refresh_token": "removed-for-demo-purposes"
    "refresh_token_expires_in": 86400
}{
	"id_token": "removed-for-demo-purposes"
    "token_type": "Bearer",
    "not_before": 1721919362,
    "id_token_expires_in": 3600,
	"profile_info" : "removed-for-demo-purposes"
    "scope": "offline_access openid",
	"refresh_token": "removed-for-demo-purposes"
    "refresh_token_expires_in": 86400
}