eg https://bookbrainz.org/edition/b401d9a7-f1bd-4bcd-a394-7c336d2f3a0b

while adding rels and pressed "submit" it seemed to do nothing - https://pastee.org/x2fwv for output.
turns out it did go through. multiple times

from chatlogs:

[20:16] <CatQuest> it works but doesn't seem too and is silent
[20:17] <CatQuest> so i pressed several times.