I updated my wiki's code, and the problem appears to be solved. Thanks!
Jeroen De Dauw
* Skype: rts.bn.vs
Don't panic. Don't be evil. 70 72 6F 67 72 61 6D 6D 69 6E 67 20 34 20 6C 69 66 65!
From: Markus Krötzsch <firstname.lastname@example.org>
Cc: jeroen De Dauw <email@example.com>
Sent: Sat, February 13, 2010 3:34:54 PM
Subject: Re: [SMW-devel] Date property type
On Dienstag, 9. Februar 2010, Markus Krötzsch wrote:
> On Dienstag, 9. Februar 2010, jeroen De Dauw wrote:
> > Adding #ISO or # is changing the contents of the pop-up, but is not
> > resulting in plain text, so the error remains.
> This is a bug then that needs to be fixed. You can downgrade the file
> SMW_DV_Time.php to its previous revision as a workaround.
The bug has now been fixed in SVN. In fact, we do not create any tooltips for
dates any more.