Noticed it just now. When I tried to edit my older question ( Can we start cleaning up [table] tag and burninate it ASAP ); I noticed that all occurances of
[tag:xyz] were being shown as
undefined instead of xyz as shown below.
Probably a minor glitch in template editing and would be fixed soon. Just thought I should notify the staff :)
Another thing I noticed was the empty tags-list under the post.
It is currently only seen on Meta Stack Overflow and nowhere else.