linux desktop app: cache dir .sphinx stores duplicates and gets extremely large

[antonilol]

my ~/.sphinx/cache/sphinx_image_cache is way too large so i looked in the files and found out more than 99% of these bytes are in duplicates of other files in the same dir

all file sizes: wc -c *, about 7.8 GB
file sizes of unique files (by sha256): wc -c $(sha256sum * | sort | uniq -w64 | sed -E 's/^.{66}//'), about 55 MB

this is also true for other cache dirs, in my sphinx_video_cache i got about 50% duplicates