Clicking [pick] in sitemenu editor in channel manager for submounts result in a 400 bad request

Reproduction: Go to the dutch channel in gogreen, edit channel, edit menu, click [pick].

response :

{
success: false,
message: "org.hippoecm.hst.pagecomposer.jaxrs.services.exceptions.ClientException: Representing an expanded parent tree through './home' is only supported with request identifier equal to the channel root content identifier",
errorCode: "INVALID_UUID",
data: { }
}