Twenty Fifteen: Fix Letter Case implementation.

This changeset fixes Letter Case control implementation on the Button block, on both front-end and in the Editor.

Props thakordarshil, pateljaymin, sabernhardt, panchalhimani711, mukesh27.
See #58526.



Built from https://develop.svn.wordpress.org/trunk@55998


git-svn-id: http://core.svn.wordpress.org/trunk@55510 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-content/themes/twentyfifteen/css/blocks.css

@@ -395,6 +395,11 @@ p.has-drop-cap:not(:focus)::first-letter {
 	vertical-align: baseline;
 }
 
+.wp-block-buttons[style*="text-transform"] .wp-block-button__link,
+.wp-block-button[style*="text-transform"] .wp-block-button__link {
+	text-transform: inherit;
+}
+
 .is-style-outline .wp-block-button__link {
 	border: 2px solid;
 }

wp-content/themes/twentyfifteen/css/editor-blocks.css

@@ -759,6 +759,11 @@ p.has-drop-cap:not(:focus)::first-letter {
 	color: #fff;
 }
 
+.wp-block-buttons[style*="text-transform"] .wp-block-button__link,
+.wp-block-button[style*="text-transform"] .wp-block-button__link {
+	text-transform: inherit;
+}
+
 .is-style-outline .wp-block-button__link {
 	color: #333;
 }

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.3-alpha-55997';
+$wp_version = '6.3-alpha-55998';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.