In my application I have 2 fragments existing in 1 activity. On
orientation change, I would like to have my 2nd fragment to use a
different layout and since I have my Activity set with
android:configChanges="orientation" in the manifest, changes will be
managed by the Activity. So I would have to replace my second fragment
with a new instance of the same fragment but I am not sure how to do
this since both fragments are inside of a ViewPager as well. I
originally found this snippet of code: http://pastebin.com/5Ycna2cg
but I am not clear on certain parts.. Like, what is mSavedState and
why is it adding null to it? The original source of this code is found
here: 
http://stackoverflow.com/questions/7723964/replace-fragment-inside-a-viewpager

If someone can give me a clear explanation of how this is done I would
be greatly appreciated. Also, the reason I am not letting the
application recreate everything on orientation change is because I
have some complex data I want to retain.

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