Ticket #60667: 60667.patch

wp-content/themes/twentyseventeen/assets/css/editor-blocks.css

@@ -818 +818 @@
         margin-left: 0;
         margin-right: 0;
 }
+
+.wp-block-cover[style*="font-size"] .wp-block-cover__inner-container .wp-block-heading,
+.wp-block-cover.has-small-font-size .wp-block-cover__inner-container .wp-block-heading,
+.wp-block-cover.has-large-font-size .wp-block-cover__inner-container .wp-block-heading,
+.wp-block-cover.has-medium-font-size-font-size .wp-block-cover__inner-container .wp-block-heading,
+.wp-block-cover.has-x-large-font-size.wp-block-cover__inner-container .wp-block-heading{
+    font-size: inherit;
+}

wp-content/themes/twentyseventeen/style.css

@@ -4371 +4371 @@
                 padding: 0;
         }
 }
+
+.wp-block-cover[style*="font-size"] .wp-block-cover__inner-container .wp-block-heading,
+.wp-block-cover.has-small-font-size .wp-block-cover__inner-container .wp-block-heading,
+.wp-block-cover.has-large-font-size .wp-block-cover__inner-container .wp-block-heading,
+.wp-block-cover.has-medium-font-size-font-size .wp-block-cover__inner-container .wp-block-heading,
+.wp-block-cover.has-x-large-font-size.wp-block-cover__inner-container .wp-block-heading{
+    font-size: inherit;
+}