When a paragraph starts with a single space and then some text, the space is saved as an nbsp, though a normal space is enough.

This bit in ezoexmlinput.php seems related, but removing it does not change behavior, so perhaps not.

if ( $tagContent[0] === ' ' && !$tag->previousSibling )//- Fixed "first space in paragraph" issue (ezdhtml rev.12246)
{
    $tagContent[0] = ';';
    $tagContent = '&nbsp' . $tagContent;
}

Steps to reproduce

• Edit an ezxmltext attribute with OE
• Make a paragraph, enter a space and then some text
• See in the database that the paragraph is saved as

  <paragraph>&amp;nbsp;some text</paragraph>
  

• Expected:

  <paragraph> some text</paragraph>