[css-transforms-2] Note that w3c#3305 is only half-done.

Author: dbaron

css-transforms-2/Overview.bs

@@ -1491,7 +1491,10 @@ Recent Changes</h3>
 	Substantive changes since <a href="https://www.w3.org/TR/2020/WD-css-transforms-2-20200303/">3 March 2020 WD</a>:
 
 	<ul>
-		<li>The specification no longer requires maintaining state for whether individual transform properties have 2D or 3D values, but instead requires that any value that can be expressed as 2D is treated as 2D (see <a href="https://github.com/w3c/csswg-drafts/issues/3305">#3305</a>).</li>
+		<li>The specification no longer requires maintaining state for whether individual transform properties have 2D or 3D values, but instead requires that any value that can be expressed as 2D is treated as 2D (see <a href="https://github.com/w3c/csswg-drafts/issues/3305">#3305</a>).
+
+			Note: An analogous change is intended for transform functions, but it has not been made yet.
+		</li>
 		<li>The 'scale' property and ''scale()'', ''scaleX()'' and ''scaleY()'' functions now support percentages (see <a href="https://github.com/w3c/csswg-drafts/issues/3399">#3399</a>).</li>
 		<li>Fix multiple definitions to be consistent with the spec's definition for a 3D Rendering Context:
 			<ul>