<div class="marker">{{this.markers}}&nbsp;</div>
<div class="source">{{this.source}}</div>
{{#ifCond this.source '!=' this.target}}
<div class="target differences">{{this.target}}</div>
{{else}}
<div class="target">{{this.target}}</div>
{{/ifCond}}

<div class="marker">{{this.markers}}&nbsp;</div>
<div class="source">{{this.source}}</div>
{{#ifCond this.source '!=' this.target}}
<div class="target differences">{{this.target}}&nbsp;</div>
{{else}}
<div class="target">{{this.target}}&nbsp;</div>
{{/ifCond}}

Allow blank target field to be selected
Allow blank target field to be selected

Added a non-breaking space to the target field so that it creates a
click target large enough to click on.
