Fix HtmlUtils unescape for supplementary chars#35477

juntae6942 wants to merge 3 commits intospring-projects:mainspring-projects/spring-framework:mainfrom

juntae6942:fix/spring-framework-35426-htmlunescape-unicodejuntae6942/spring-framework:fix/spring-framework-35426-htmlunescape-unicodeCopy head branch name to clipboard