This isn't really a problem in most cases, but can create conflicts with mods such as Advanced Product Management, and when replying to non-wiki posts.
When no other "title" has been specified (like a reply), VaultWiki will assert the script's file name into "title".
Fixed in the current ZIP. In
vault/special_class_wiki.php, find:
Code:
if (VAULT_FRIENDLY_ENTRY AND empty($_REQUEST["$titlevar"]))
Replace with:
Code:
if (THIS_SCRIPT == 'showwiki' AND VAULT_FRIENDLY_ENTRY AND empty($_REQUEST["$titlevar"]))