Encode redirect url.

src/main/java/org/codelibs/fess/app/web/admin/searchlist/AdminSearchlistAction.java

@@ -24,6 +24,7 @@ import javax.annotation.Resource;
 import javax.servlet.http.HttpServletRequest;
 
 import org.codelibs.core.lang.StringUtil;
+import org.codelibs.core.net.URLUtil;
 import org.codelibs.fess.Constants;
 import org.codelibs.fess.app.service.SearchService;
 import org.codelibs.fess.app.web.CrudMode;
@@ -313,7 +314,7 @@ public class AdminSearchlistAction extends FessAdminAction {
                 }).orElse(() -> {
             throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, form.docId), () -> asEditHtml());
         });
-        return redirectWith(getClass(), moreUrl("search").params("q", form.q));
+        return redirectWith(getClass(), moreUrl("search").params("q", URLUtil.encode(form.q, Constants.UTF_8)));
     }
 
     // ===================================================================================