When does language-selector run?

[dg1727]

On Wed, 04 Jul 2012 14:30:52 -0400 dg1727 <dg1727 at hushmail.com> 
wrote:
>Hi,
>
>In http://ubuntuforums.org/showthread.php?t=1984949 I wrote: 
>
>---
>In reference to https://bugs.launchpad.net/ubuntu/+source/language-
>selector/+bug/893920
>
>That bug was fixed in 12.04 Precise, which I haven't upgraded to
>yet. 
>
>The resolution to that bug is that language-selector now always
>installs the poppler-data package. 
>
>Does language-selector run always, or only sometimes, in these
>conditions: 
>
>    * on an upgrade from an older version of Ubuntu (such as
>11.10)? 
>    * on a fresh install of 12.04? 
>
>---
>
>Does anyone have an answer to that question? 
>
>I ask to double-check whether there is a case in which poppler-
>data might not get installed with Evince during an OS install.  
>(This applies to network-connected installs only, because the 
>history of that Launchpad bug report already states that 
>poppler-data doesn't fit on install CDs). 

Any info about this would be appreciated.  Thanks.  

-dg1727