National Decision available icon - but it's not in the list.

[Rikeus]

So I was playing as Russia, and once I finished conquering Kazan I got a little icon telling me I had the "Go east into Siberia" national decision available. But when I go to the national decisions tab, it's not there! Is this some kind of bug? What does that decision even do? Here's a screenshot:

 

[USSR]

It gives you a free explorer. You will need to reload your game in order to use the decision though. This happened to me when I formed Russia and continued to play until it became available.

 

[jdrou]

Always save and reload immediately after changing tags (i.e. forming Russia, Spain, Great Britain, etc.).