The process needs reviewal.

When you enter the administration page of a survey, the theme being picked up (the one got in getSurveyInfo) is not the one of the survey, but the one of the group. That is, even if the survey does not inherit from the group, on those screens it ends up "inheriting" it anyway. Why? Because of this:

    public function setOptionsFromDatabase()
    {
        // set real survey options with inheritance
        $this->bShowRealOptionValues = false;
        $this->setOptions($this->gsid);
    }

Since the survey administration screens go through SurveyAdministrationController::actionRendersidemenulink() , setOptionsFromDatabase() is called, causing $survey->options to have the values ​​from the group instead of the survey.

Then the same controller, in the beforeRender() calls LimeExpressionManager::StartProcessingPage(false, true), which ends up calling templatereplace("{SID}") (not sure why is that needed). There, the template returned by getSurveyInfo is the one used, merging the attributes of the survey with those of "options" (which are the ones that went wrong).