CLDC-4332: Only show the check for wrong org on edit

app/controllers/users_controller.rb

@@ -224,7 +224,7 @@ private
     if user_params.key?(:organisation_id)
       if user_params[:organisation_id].blank?
         @user.errors.add :organisation_id, :blank
-      elsif !@user.role_is_allowed_to_be_in_organisation?(override_organisation_id: user_params[:organisation_id].to_i)
+      elsif !@user.role_is_allowed_to_be_in_organisation?(override_organisation_id: user_params[:organisation_id].to_i) && @user.id != nil
         # this will also be flagged by the validation in user.rb.
         # for convenience we show the error early before they go through the change org flow (involves reassigning logs).
         @user.errors.add :organisation_id, I18n.t("validations.user.support_user_in_wrong_organisation.change_organisation")