Update/Change file-hash when file is replaced with a new one with the filelist
If you have for example a resized image on your webpage:
<img src="/typo3temp/_processed_/csm_filename_ccc_cc_de_ff24b110eb.jpg" />
And you do overwrite this image with a new image (same size and name) in the filelist,
then the filehash at the end should change, so that the browser loads the new file and does not show the old, cached version.