[web-animations-1] Fix order of steps for resolving physical vs logical properties in computed keyframes

This closes #3532.

Author: birtles

web-animations-1/Overview.bs

@@ -3230,12 +3230,12 @@ a <a>target element</a> for which computed property values can be calculated.
         1.  Shorthand properties with fewer longhand components override those
             with more longhand components (e.g. 'border-top' overrides
             'border-color').
+        1.  Physical properties override logical properties.
         1.  For shorthand properties with an equal number of longhand
             components, properties whose IDL name (see the <a>CSS property to
             IDL attribute</a> algorithm [[!CSSOM]]) appears earlier when
             sorted in ascending order by the Unicode codepoints that make up
             each IDL name, override those who appear later.
-        1.  Physical properties override logical properties.
 
 1.  Apply the procedure to <a>compute missing keyframe offsets</a> to
     <var>computed keyframes</var>.
@@ -5792,6 +5792,8 @@ The following changes have been made since the <a
 *   Made the definition of a [=current=] [=animation effect=] incorporate the
     associated animation's [=playback rate=] (<a
     href="https://github.com/w3c/csswg-drafts/issues/3193">#3193</a>).
+*   Updated the steps for resolving which properties to use when calculating
+    [=computed keyframes=] when physical and logical properties are used.
 
 The <a
   href="https://github.com/w3c/csswg-drafts/commits/master/web-animations-1">changelog</a>