uploading a zip with tiff files does not set needsConversion=true

[fm3]

I believe the frontend unpacks the zip and should inspect it. My zipfile only contained tif files so a conversion job should have been started.

Instead, the finishUpload job sends needsConversion=false, and then fails in the backend (and with a bad error message „head of empty list“).

The backend should yield a better error message, and the frontend should auto-detect that this needs a conversion job.