[Tickets #7101] Modifiying of tasks via webdav doesn't work

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Ticket URL: http://bugs.horde.org/ticket/7101
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  Ticket             | 7101
  Created By         | adrieder at sbox.tugraz.at
  Summary            | Modifiying of tasks via webdav doesn't work
  Queue              | Nag
  Version            | HEAD
  Type               | Bug
  State              | Unconfirmed
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
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adrieder at sbox.tugraz.at (2008-07-23 08:01) wrote:

When trying to modify a task in sunbird via webdav I get the following  
fatal error:

PHP Fatal error:  Call to undefined method PEAR_Error::get() in  
/usr/local/apache/htdocs/horde/nag/lib/Driver.php on line 347

Strange that it happens there, since I do not try to move the task to  
anoter task list.
It seems that $tasklist is "null" (doesn't get passed by the api call)  
so the driver considers the modification as a move to another  
tasklist, which of course is not the desired action (see line 332).