example:
---------------
mkdir dirA
echo 'a' > dirA/a
echo 'a' > dirA/b
tar -vcf test.0.tar -incremental --newer '2150-02-08 21:50:00' dirA
tar: dirA: Directory is new
dirA/
dirA/a
dirA/b
---------------

It should not archive dirA/a and dirA/b

In src/create.c:
--------------------
     This check is omitted if incremental_option is set *and* the
      requested file is not explicitly listed in the command line.  */
 
  if (! (incremental_option && ! top_level)
--------------------

I do not understand why this check is done, maybe you want it for 
--listed-incremental but it looks buggy for --incremental where we want to 
compare the mtime for all files

The attached patch fix it and pass all 'make check'.

Jean-Louis
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diff --git a/src/create.c b/src/create.c
index 35bcf5b..aa7ba96 100644
--- a/src/create.c
+++ b/src/create.c
@@ -1724,10 +1724,10 @@ dump_file0 (struct tar_stat_info *st, char const *name, char const *p)
   /* See if we want only new files, and check if this one is too old to
      put in the archive.
 
-     This check is omitted if incremental_option is set *and* the
+     This check is omitted if listed_incremental_option is set *and* the
      requested file is not explicitly listed in the command line.  */
 
-  if (! (incremental_option && ! top_level)
+  if (! (listed_incremental_option && ! top_level)
       && !S_ISDIR (st->stat.st_mode)
       && OLDER_TAR_STAT_TIME (*st, m)
       && (!after_date_option || OLDER_TAR_STAT_TIME (*st, c)))

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