[entities] properly escape in EmailAddress.printable_value when format is html. Closes #3064025
importConfigParsertry:undo_actions=config.cfgfile_parser.get('MAIN','undo-support',False)exceptConfigParser.NoOptionError:pass# this conf. file was probably already migratedelse:config.global_set_option('undo-enabled',bool(undo_actions))