Link on block

Hi,

Love the plug-in but I’ve got a small bug report.

When adding a link (editorskit-block-link) to a block it also adds an empty rel-attribute to the a-element. The problem is that this rel-attribute is directly against the class-attribute.

Example:
<a href="https://example.com" class="editorskit-block-link"rel=""></a>

Most browsers will automatically resolve this by putting a space between the 2 attributes. But when checking the source or using the W3-validator (https://validator.w3.org/) this will show up as this error:
“Error: No space between attributes.”

Could this please be checked?

Kind regards,
Jan