[texhax] Question about \unvbox and longtable package

[VAFA KHALIGHI]

In the attached minimal example, I have changed the definition of
\endlongtable and \LT at ntabularcr. In both, I have changed \unvbox\z@ to
\hbox{\vbox{\unvbox\z@}} and it no longer works correctly (there is some
vertical space at the end of page 1 and the last \hline in page 1
disappeared). Please do not ask me why I am doind this. The reason is very
clear. To make it RTL, the only way is that I put this inside an \hbox. Do
you think there is a way that I can fix this or even if its fixable at all?

Thanks
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