`$author` is already encoded using HTML entities.
<item name="wcf.editor.quote.author"><![CDATA[Quelle]]></item>
<item name="wcf.editor.quote.edit"><![CDATA[Zitat bearbeiten]]></item>
- <item name="wcf.editor.quote.title"><![CDATA[{if $author}Zitat von {$author}{else}Zitat{/if}]]></item>
+ <item name="wcf.editor.quote.title"><![CDATA[{if $author}Zitat von {@$author}{else}Zitat{/if}]]></item>
<item name="wcf.editor.quote.url"><![CDATA[Link]]></item>
<item name="wcf.editor.quote.url.description"><![CDATA[Optional: {if LANGUAGE_USE_INFORMAL_VARIANT}Gib{else}Geben Sie{/if} einen Link zu der Quelle an.]]></item>
<item name="wcf.editor.quote.url.error.invalid"><![CDATA[Der eingegebene Link ist ungültig.]]></item>
<item name="wcf.editor.quote.author"><![CDATA[Source]]></item>
<item name="wcf.editor.quote.edit"><![CDATA[Edit Quote]]></item>
- <item name="wcf.editor.quote.title"><![CDATA[{if $author}Quote from {$author}{else}Quote{/if}]]></item>
+ <item name="wcf.editor.quote.title"><![CDATA[{if $author}Quote from {@$author}{else}Quote{/if}]]></item>
<item name="wcf.editor.quote.url"><![CDATA[Link]]></item>
<item name="wcf.editor.quote.url.description"><![CDATA[Optional: Specify the link to the source.]]></item>
<item name="wcf.editor.quote.url.error.invalid"><![CDATA[You have entered an invalid link.]]></item>