This is perhaps a minor point, and I only noticed it because I wanted to quickly hide a few fields that site editors weren't ever going to use. But the Twitter cards–related fields have CSS classes on their divs that are invalid. For instance:
None of those colons are valid in the CSS class names. I'm guessing the field names are just being converted to class names without replacing those colons with hyphens (or something).
FAILED: [[SimpleTest]]: [MySQL] Unable to apply patch drupal-formbuilder_classname_symbols-2058569-3.patch. Unable to apply patch. See the log in the details link for more information.
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