The RSS feed is not per gallery. Let me explain:
While one specify galleryId for which the RSS feed is
requested, the actual feed happens to be for that
gallery which was last modified. For instance let's say I
have two file galleries - each will of course have its own
uniqueId (say 1 and 2). Now I create two RSS feeds for
galleryId 1 and galleryId 2.
If I now display these two RSS feeds in a module, you
should notice (unless the bug is already fixed by the
time I submit this) that for both feeds, the information
will be identical.
Further, if I add a file to galleryId=2, then I get this
change in RSS feed for galleryId=1.
I fixed this bug a long time back, so the actual
manifestation of it is little fuzzy right now.
Anyways, I have attached the patch that fixes this bug.
The theory of operation is to make the value of $feed
unique in tiki-rss_readcache.php
Oh and by the way, I tried commiting my changes for
another bug in integrator sometime ago and it seemed
like I did not have write access to CVS, hence the patch
as opposed to me just commiting my modifications.