[Users] Attachments multiplied in mimetmp

[Michael]

I asked this before but in an unfortunate way. And i wonder if just nobody got the point. So let me repeat the question once more.

This issue would certainly need more thorough investigation, possibly with a debugger, but i can not afford to do this. So i just want to point out that the basic issue exists. 

When i right-click on the first image of several, which are attached to a sent mail, (attachment done by claws itself, when i selected files just as usual.) 

Then the following happens:

(1) The image gets decoded and placed into mimetmp as 00000005.<filename>.jpg.

(2) The same image gets decoded and placed into mimetmp as claws.TtEmbv (or so).

If i say 'open with' and choose an image viewer, this happens: 

Most image viewer programs open the image folder and show all images. So they show me me the redundant files in mimetmp.

[ I clarify, there was only one image of that name attached to the mail, along with some other images ]

When i change to another mail folder, the redundant images in mimetmp are still there (as seen in a neutral file manager with forced file list update.)

But when i change back and repeat the attachment opening, more images of the "0000000<n>.<filename>.jpg" type are created. Also the "claws.TtEmbv" type is repeated. The existing are not reused.

Confusingly, some of the images are cleared sometimes (but never all) when i change folders, but i could not yet understand why and when exactly. To me it appears like random.

I guess this is not really the desired behavior, at least partly, but since it does not cause immediate problems, maybe noone noticed. 

But would it not mean unnecessary resource consumption ? Especially with large files.