Problems with -R option

Hello all,

I have a problem with reading articles saved via -S.
In order to save a thread, I marked  it  as  unread,
quited tin, run it with -S, and then started it with
-R.  Only 7 of 163 articles were  visible,  although
all  163 were present in ~\News.  It turned out that
after using -R the .newsrc file was changed and that
thread  was  again  marked  as read except the seven
messages shown.

Why does tin do it?  Why, when started with -R, does
it  show  only part of saved messages, even though I
had disabled the "Show only read articles"?

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