Ссылка со слешем в конце и без — разные страницы. Почему?

   RewriteCond %{REQUEST_FILENAME} !-f
   RewriteCond %{REQUEST_FILENAME} !-l
   RewriteCond %{REQUEST_FILENAME} !-d
   RewriteCond %{REQUEST_URI} ^(.*/[^/\.]+)$
   RewriteRule ^(.*)$ http://%{HTTP_HOST}/$1/ [R=301,L]

<IfModule mod_rewrite.c>
   Options +FollowSymLinks
   RewriteEngine On

   RewriteCond %{REQUEST_FILENAME} -f [OR]
   RewriteCond %{REQUEST_FILENAME} -l [OR]
   RewriteCond %{REQUEST_FILENAME} -d
   RewriteCond %{REQUEST_FILENAME} [\xC2-\xDF][\x80-\xBF] [OR]
   RewriteCond %{REQUEST_FILENAME} \xE0[\xA0-\xBF][\x80-\xBF] [OR]
   RewriteCond %{REQUEST_FILENAME} [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} [OR]
   RewriteCond %{REQUEST_FILENAME} \xED[\x80-\x9F][\x80-\xBF] [OR]
   RewriteCond %{REQUEST_FILENAME} \xF0[\x90-\xBF][\x80-\xBF]{2} [OR]
   RewriteCond %{REQUEST_FILENAME} [\xF1-\xF3][\x80-\xBF]{3} [OR]
   RewriteCond %{REQUEST_FILENAME} \xF4[\x80-\x8F][\x80-\xBF]{2}
   RewriteCond %{REQUEST_FILENAME} !/bitrix/virtual_file_system.php$
   RewriteRule ^(.*)$ /bitrix/virtual_file_system.php [L]
   
   RewriteCond %{REQUEST_FILENAME} !-f
   RewriteCond %{REQUEST_FILENAME} !-l
   RewriteCond %{REQUEST_FILENAME} !-d
   RewriteCond %{REQUEST_URI} ^(.*/[^/\.]+)$
   RewriteRule ^(.*)$ http://%{HTTP_HOST}/$1/ [R=301,L]

   RewriteCond %{REQUEST_FILENAME} !-f
   RewriteCond %{REQUEST_FILENAME} !-l
   RewriteCond %{REQUEST_FILENAME} !-d
   RewriteCond %{REQUEST_FILENAME} !/bitrix/urlrewrite.php$
   RewriteRule ^(.*)$ /bitrix/urlrewrite.php [L]
   RewriteRule .* - [E=REMOTE_USER:%{HTTP:Authorization}]
</IfModule>