I am trying to get sip_to_tag session variable in a lua script which is executed on media (183) I can see from tag call id but not to tag

I saw this was fixed in https://freeswitch.org/jira/browse/FS-7137 but I am using higher version

FreeSWITCH Version 1.4.26+git~20151124T001158Z~45534616c6~64bit (git 4553461 2015-11-24 00:11:58Z 64bit)