Duplicate option revisions in treeitem

mcking65 · mcking65 · commit d97ef544e719 · 2020-12-04T00:13:10.000-08:00
diff --git a/index.html b/index.html
@@ -9916,7 +9916,10 @@ <h5>Presentational Roles Conflict Resolution</h5>
 				<p>An item in a <rref>tree</rref>.</p>
         				<p>A <rref>treeitem</rref> <a>element</a> may contain a sub-level group of elements that can be expanded or collapsed. An expandable collection of <code>treeitem</code> elements are enclosed in an element with the <rref>group</rref> <a>role</a>.</p>
 				<p>Authors MUST ensure <a>elements</a> with <a>role</a> <code>treeitem</code> are contained in, or <a>owned</a> by, an element with role <rref>tree</rref> or an element with role <rref>group</rref> that is contained in, or owned by, an element with role <rref>treeitem</rref>.</p>
-        <p>User agents MAY provide an implicit value for <sref>aria-selected</sref> for each <rref>treeitem</rref> in a <rref>tree</rref> if the following conditions are met, but user agents MUST NOT provide an implicit value for <sref>aria-selected</sref> if any of the following conditions are not met:</p>
+        <p>
+          User agents MAY provide an implicit value for <sref>aria-selected</sref> for each <rref>treeitem</rref> in a <rref>tree</rref> only if the following conditions are met.
+          If a user agent provides an implicit value for <sref>aria-selected</sref> on a <rref>treeitem</rref>, the user agent MUST ensure the following conditions are met before providing the implicit value:
+        </p>
         <ul>
           <li>The value of <pref>aria-multiselectable</pref> on the <rref>tree</rref> is <code>false</code> or <code>undefined</code>.</li>
           <li>None of the <rref>treeitem</rref> elements in the <rref>tree</rref> have an explicitly declared value for <sref>aria-selected</sref> or <sref>aria-checked</sref>.</li>  
@@ -9926,8 +9929,10 @@ <h5>Presentational Roles Conflict Resolution</h5>
           Otherwise, if a user agent provides an implicit <sref>aria-selected</sref> value for a <rref>treeitem</rref>, the value SHOULD be <code>false</code>.
         </p>
         <p>
-          The <rref>treeitem</rref> role supports both <sref>aria-selected</sref> and <sref>aria-checked</sref> because it is recommended that authors indicate selection with <sref>aria-selected</sref> in single-select trees and with <sref>aria-checked</sref> in multi-select trees.
-          Authors SHOULD NOT specify both <sref>aria-selected</sref> and <sref>aria-checked</sref> on <rref>treeitem</rref> elements contained by the same <rref>tree</rref> except in the extremely rare circumstances where all the following conditions are met:
+          Authors MAY indicate selection for <rref>treeitem</rref> elements  using either <sref>aria-selected</sref> or <sref>aria-checked</sref>.
+          Some user interfaces indicate selection with <sref>aria-selected</sref> in single-select trees and with <sref>aria-checked</sref> in multi-select trees.
+          Authors SHOULD NOT specify both <sref>aria-selected</sref> and <sref>aria-checked</sref> on <rref>treeitem</rref> elements contained by the same <rref>tree</rref>.
+          However, authors MAY use both in the same <rref>tree</rref> in the extremely rare circumstances where all the following conditions are met:
         </p>
         <ul>
           <li>The meaning and purpose of <sref>aria-selected</sref> is different from the meaning and purpose of <sref>aria-checked</sref> in the user interface.</li>
