Re: [office-collab] Serialization and change tracking

<text:p text:style-name="Normal" delta:insertion-type="insert-with-content" delta:insertion-change-idref="1" >
    <text:span text:style-name="bold" delta:insertion-change-idref="1">Remove </text:span>
    <text:span text:style-name="norm" delta:insertion-change-idref="2" 
               ac:change3="1,insert,text:style-name," 
               ac:change4="2,modify,text:style-name,bold">B</text:span>
    <text:span text:style-name="normUL" delta:insertion-change-idref="3" 
               ac:change4="1,insert,text:style-name," 
               ac:change5="2,modify,text:style-name,bold" 
               ac:change6="3,modify,text:style-name,norm">ol</text:span>
    <text:span text:style-name="norm" delta:insertion-change-idref="2" 
               ac:change3="1,insert,text:style-name," 
               ac:change4="2,modify,text:style-name,bold">d</text:span>
</text:p>