The /manage page posts with FormData, i.e. multipart/form-data, but the edit,
delete, tags, restore and empty-trash handlers parsed with r.ParseForm, which
only reads urlencoded bodies. So every field came back empty: delete returned
200 with deleted:0 and moved nothing, edits saved nothing — while curl -d
(urlencoded) worked, which is why tests and manual checks missed it.
Parse with ParseMultipartForm (tolerating ErrNotMultipart so urlencoded still
works), via a shared parseForm helper used by all manage handlers. handleUpload
already did this. Also stop the UI reporting deleted:0 / updated:0 as success,
and add a multipart regression test.
puttaalu
bf75c9fe8e