fixes #2669 username first name and last name doesn't accept i18n characters(cherry picked from commit aa925f8009b7024dbb77c797d95c14b2e725a1d7)
fixes #2669 username first name and last name doesn't accept i18n characters
(cherry picked from commit aa925f8009b7024dbb77c797d95c14b2e725a1d7)