Added doc note about getWikiId().

Change-Id: I9c078baf84e0fead743e5315f698bd287ecf9f13

diff --git a/includes/filebackend/FileBackend.php b/includes/filebackend/FileBackend.php
index 306bf35..e88c368 100644 (file)
--- a/includes/filebackend/FileBackend.php
+++ b/includes/filebackend/FileBackend.php
@@ -129,7 +129,8 @@ abstract class FileBackend {
        }
 
        /**
-        * Get the wiki identifier used for this backend (possibly empty)
+        * Get the wiki identifier used for this backend (possibly empty).
+        * Note that this might *not* be in the same format as wfWikiID().
         *
         * @return string
         * @since 1.20