[Tickets #14742] IMP is marked as authenticated when horde_lz4 loaded

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Ticket URL: https://bugs.horde.org/ticket/14742
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  Ticket             | 14742
  Created By         | aria at bsc.gwu.edu
  Summary            | IMP is marked as authenticated when horde_lz4 loaded
  Queue              | IMP
  Version            | 6.2.21
  Type               | Bug
  State              | Unconfirmed
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
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aria at bsc.gwu.edu (2017-11-29 21:12) wrote:

Hi,
Upgrading to Horde Groupware 5.2.22, IMP 6.2.21 on a SLES 12-SP3  
system with PHP 5.5.

If I install the PEAR package horde_lz4-1.0.10 and load via  
extension=horde_lz4.so in the PHP.INI, as recommended by the  
installation manual, I notice that the IMP application fails to work.   
After login, I see these errors:

ERR: HORDE [imp] IMP is marked as authenticated, but no credentials  
can be found in the session. [pid 13175 on line 628 of  
"/data/www/horde/imp/lib/Imap.php"]

I have configured Horde to authenticate against my IMAP server.

If I load the PEAR lzf module, all works fine.  If I load both lzf and  
horde_lz4, IMP gets the error.  Everything else works fine when IMP is  
not working (with lz4 loaded).

I have removed horde_lz4 for now.

Thanks