Patch Level 3 caused a bug

[squishi]

I need some help.

I applied patch level 3 line by line to my vb installation 3.8.7.
I made the changes on all the files that were included in the patch download, making sure that the changes were ported to my installation.

Now $vbulletin->userinfo is undefined in the fetch_userinfo function when using the fetch_userinfo_query hook. This function itself checks for the $vbulletin->userinfo['userid'], so this is not a desired behavior at all.

I cannot undo the changes, because 1) I trusted you guys to not screw the code up and 2) when I download vb 3.8.7, I get the patched versions of the files. So from the files that you offer, the error cannot be undone anymore.
I will now proceed to undo the patch using a backup.

This error was introduced with patch level 3 and needs to be fixed.