Cannot set the color for links inside tables

Steps to reproduce:

• create a table with 2 links on different rows
• set some colors to the links
  Result:
• in view mode the colors are displayed as expected
• in edit mode the colors are missing
  Seems to be related to the following custom rules at https://github.com/xwiki/xwiki-platform/blob/xwiki-platform-6.4.5/xwiki-platform-core/xwiki-platform-wysiwyg/xwiki-platform-wysiwyg-client/src/main/resources/org/xwiki/gwt/wysiwyg/public/stylesheets/RichTextArea.css#L43

  /* Fix for XWIKI-3752 by overriding path/to/firefox/res/contenteditable.css rules */
  a:-moz-read-write {
    color: $theme.linkColor !important;
    text-decoration: none !important;
  }
  a:hover:-moz-read-write {
    text-decoration: underline !important;
  }