uploading an image with embedded blanks does not display image

D6 with latest modules installed via drush about 5 days ago.

I traced the issue to the cache folder not having the image there. The uploaded filename has it embedded blanks preserved by Linux (gentoo) as I found them in the imagecache subfolder tree. But the other images that were suppose to be generated were not found, but those image filenames with no blanks worked fine.

I suspect either the needed images are not being created on the fly, or are being flushed, and I ought to really look into this again, and will when testing and looking at the source code. It could be in imagecache, or I suppose image, or upload.

The client has 300+ images, all with multiple blanks embedded on a Mac, in some iMac gallery software she uses to sort the photos across galleries. She wants some 30+ galleries this time. Maybe more. So, renaming the photos now, is going to bust her current galleries. Sigh.

I'm going to read source code next. It's a lot of code to read, so I am posting here first. Need more details? I was skimpy here, as if no one has heard of this problem, then...

I searched the issue list at for terms like blank, upload, filename, missing, embed and no results. For any of those terms. I likely do not know how to use this search, but it has always worked for me in the past. Very strange.

http://drupal.org/project/issues/search/imagecache?status[]=8&status[]=13&status[]=14

I read the pending fix descriptions, not the detailed bug reports.

To be explicit about the folders

root@ns3 sites # cd default/
root@ns3 default # cd files
root@ns3 files # ls
backup_migrate css image imagecache imagecache_sample.png imagefield_default_images images js photos
root@ns3 files # cd imagecache
root@ns3 imagecache # ls
preview small thumbnail
root@ns3 imagecache # ls -lR
.:
total 12
drwxrwxr-x 3 apache apache 4096 Nov 14 20:37 preview
drwxrwxr-x 2 apache apache 4096 Nov 14 20:21 small
drwxrwxr-x 3 apache apache 4096 Nov 14 20:54 thumbnail

I'd show you the listing of these, but I deleted the three image files
the client uploaded, so they are not there. I googled and found
an old filename with embedded ampersand/