[Dev-luatex] \tracingtokens=1, ( ) are logged curiously

22 Feb 2021

      Suppose:

-----------------------------------------

\tracingscantokens=1

\scantextokens{first}

\scantextokens{second}

\bye

-----------------------------------------

and run luatex test.

Then the ( and ) are logged curiously: ( ( ... ))  Why all closing )) 
are logged after end command?

If we change \scantextokens to \scantokens, then ( and ) behaves more 
logical in log file and in the terminal: ( ) ( ).

Petr Olsak