[tz] Russian TZ Samara has no offset listed since 2010g

[manprsi2]

Hello,
  Europe/Samara has the follow zone.tab definition since 2010g (no offset
listed)

 RU    +5312+05009    Europe/Samara    Moscow - Samara, Udmurtia

It used to be 

 RU    +5312+05009    Europe/Samara    Moscow+01 - Samara, Udmurtia

Samara changed to Moscow but all the other regions are listed with an offset
even if +00 (Volgograd, Moscow) while Samara is not. I can not tell by
searching the mail archive if the change this way was intentional or not?

Thanks
- Manpreet