[zeditor] Crash-to-desktop when right-clicking Link To... in FFC Editor

Here in drop_down_list.cpp is the assertion that failed because event == 8 (geRCLICK)

int32_t DropDownList:😮nEvent(int32_t event, MessageDispatcher& sendMessage)
{
	assert(event == geCHANGE_SELECTION);
	if(onSelectFunc)
		onSelectFunc(listData->getValue(alDialog->d1));
	if(message >= 0)
		sendMessage(message, listData->getValue(alDialog->d1));
	return -1;
}

Cannot recreate in a Release build... this crash appears to only affect developers using Debug builds.