Test upload of one of the smallest webm I can create, 1 frame 1 second 120p, using $ ffmpeg -f rawvideo -video_size 160x120 -framerate 1 -i /dev/urandom -t 1 ~/test.webm, with ffmpeg version 3.0.2-2~bpo8+1 running on videodev.video.eqiad.wmflabs, also uploading on the same host to Commons:
{P4817}
Expected behavior: either the upload is treated like a non-async upload or a filekey is given so a checkstatus could be performed like an async upload.
I also tried to make sure this is not caused by TMH. An upload of a png created with $ < /dev/urandom rawtoppm -rgb 64 64 | pnmtopng > ~/test.png has the same results