Ticket #57174: 57174.2.patch

src/js/_enqueues/wp/updates.js

@@ -2612 +2612 @@
                 $pluginSearch.on( 'keyup input', _.debounce( function( event ) {
                         var data = {
                                 _ajax_nonce:   wp.updates.ajaxNonce,
-                                s:             encodeURIComponent( event.target.value ),
+                                s:             event.target.value,
                                 pagenow:       pagenow,
                                 plugin_status: 'all'
                         },