No. It has nothing at all to do with importing names twice. Not convinced? Run this code: 
#!/usr/bin/perl

use strict;
use warnings;

use File::Basename ();   # Not calling import!
BEGIN {delete $INC{"File/Basename.pm"}};
use File::Basename ();   # Not calling import!
__END__
Subroutine fileparse_set_fstype redefined at /usr/lib/perl5/lib/5.8.6/
+File/Basename.pm line 157.
Subroutine fileparse redefined at /usr/lib/perl5/lib/5.8.6/File/Basena
+me.pm line 171.
Subroutine basename redefined at /usr/lib/perl5/lib/5.8.6/File/Basenam
+e.pm line 238.
Subroutine dirname redefined at /usr/lib/perl5/lib/5.8.6/File/Basename
+.pm line 251.

[download]
Can we now please stop this myth that redefining subroutines has anything to do with import?

In reply to Re^4: What happens when you load the same module twice? by Anonymous Monk
in thread What happens when you load the same module twice? by periapt

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