https://github.com/htacg/tidy-html5/issues/1012
https://bugs.gentoo.org/916074

commit e411ad0d2582471fe0961900b2789ee8b5b9cc4c
Author: Markus Pister <pister@absint.com>
Date:   Wed Jan 5 08:30:10 2022 +0100

    Attribute 'type' in tag 'ol' allowed for (X)HTML5
    
    Mark the attribute 'type' as allowed for tag 'ol' in (X)HTML5.
    
    The attribute type was deprecated in HTML4. This decision was reverted
    for HTML5, see
    
        https://www.w3.org/TR/2014/NOTE-html5-diff-20141209/#changed-attributes
    
    This fixes htacg#1012.

--- a/src/attrdict.c
+++ b/src/attrdict.c
@@ -2321,7 +2321,7 @@ const AttrVersion TY_(W3CAttrsFor_OL)[] =
   { TidyAttr_START,                 xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50 },
   { TidyAttr_STYLE,                 xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50 }, /* CORE override */
   { TidyAttr_TITLE,                 xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50 }, /* CORE override */
-  { TidyAttr_TYPE,                  xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx },
+  { TidyAttr_TYPE,                  xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50 },
   { TidyAttr_XMLNS,                 xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|XH11|XB10|HT50|XH50 }, /* CORE override */
   { TidyAttr_XML_LANG,              xxxx|xxxx|xxxx|xxxx|X10T|xxxx|xxxx|X10F|xxxx|xxxx|X10S|XH11|XB10|xxxx|XH50 }, /* CORE override */
   INCLUDE_CORE_ATTRIBS