Plugins: Correctly display spaces in new plugins search results.

Ensures the encoded search term in the input field is correctly decoded again.

Follow-up to [53844] and [54904].

Props adhun, nithi22, huzaifaalmesbah, deepakvijayan, zunaid321, iammehedi1.
Fixes #59143.
Built from https://develop.svn.wordpress.org/trunk@56446


git-svn-id: http://core.svn.wordpress.org/trunk@55958 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/plugin-install.php

@@ -316,7 +316,7 @@ function install_dashboard() {
  */
 function install_search_form( $deprecated = true ) {
 	$type = isset( $_REQUEST['type'] ) ? wp_unslash( $_REQUEST['type'] ) : 'term';
-	$term = isset( $_REQUEST['s'] ) ? wp_unslash( $_REQUEST['s'] ) : '';
+	$term = isset( $_REQUEST['s'] ) ? urldecode( wp_unslash( $_REQUEST['s'] ) ) : '';
 	?>
 	<form class="search-form search-plugins" method="get">
 		<input type="hidden" name="tab" value="search" />

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-alpha-56445';
+$wp_version = '6.4-alpha-56446';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.