Description:
------------
A "DB Error: syntax error" is thrown when I try to edit a bug and change the e-mail address (supply an e-mail in the "New email" field). Without providing information in that field everything works just fine.

So, I took a look at the source code:
http://cvs.php.net/co.php/pearweb/public_html/bugs/bug.php?r=1.72
and I thing I've found the bug. It is on line 275:           

$query .=  "email='{$_POST['in']['email']}',";

there have to be a leading space in the string assigned to $query:

$query .=  " email='{$_POST['in']['email']}',";

Otherwise, the query becomes "UPDATE bugdb SETemail=...", which is of course, syntactically incorrect.

Here it is the patch:

275c275
<             $query .=  "email='{$_POST['in']['email']}',";
---
>             $query .=  " email='{$_POST['in']['email']}',";