libraries/tbs/plugins/tbs_plugin_opentbs.php
function switchToNormal() {
		// Save info
		$src = $this->GetSrc();
		$this->Txt = &$this->rel_Txt;
		$x = false;
		$this->rel_Txt = &$x;
		$this->Txt = substr_replace($this->Txt, $src, $this->rel_PosBeg, $this->rel_Len);
		$this->_ApplyDiffToAll(+$this->rel_PosBeg);
		$this->rel_PosBeg = false;
		$this->rel_Len = false;
	}
function switchToNormal() {
		// Save info
		$src = $this->GetSrc();
		$this->Txt = &$this->rel_Txt;
		$x = false;
		$this->rel_Txt = &$x;
		$this->Txt = substr_replace($this->Txt, $src, $this->rel_PosBeg, $this->rel_Len);
		$this->_ApplyDiffToAll(+$this->rel_PosBeg);
		$this->rel_PosBeg = false;
		$this->rel_Len = false;
	}
To use after switchToRelative(): save modificatin to the normal contents and update positions.