Hi Andreas,

good find! The most recent changes in SVN introduce multi-letter chain support. 
This required a non-trivial refactoring of the internal data structure. You 
found a reference counting bug, I'll fix that.

Cheers,
  Thomas

On 09 Sep 2014, at 06:24, Andreas Förster <docandr...@gmail.com> wrote:
> Dear all,
> 
> I've noticed that chain IDs disappear after creating symmetry-related 
> copies:
> 
> fetch 1ubq
> -> You clicked /1ubq//A/LEU`73/CG
> symexp symm1, 1ubq, 1ubq and i. 30, 10
> -> You clicked /1ubq//(null)/LEU`73/CG
> -> You clicked /symm1000000-1//(null)/LEU`73/CG
> 
> Chain A turns into chain (null).  What's up with this?
> 
> PyMOL 1.7.3.0 on RHEL 6.3 64-bit installed from cvs 9/9/14.
> 
> Thanks.
> 
> Andreas
> 
> -- 
>                   Andreas Förster
>      Crystallization and X-ray Facility Manager
>            Centre for Structural Biology
>               Imperial College London

-- 
Thomas Holder
PyMOL Developer
Schrödinger, Inc.


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