我想用系统用户修改维基，但只能修改标题，不能修改内容。在这里，我在控制台和浏览器中都收到了“错误 422”的消息。我已经排除了是新内容导致的问题，因为我可以用普通用户保存它。也不是文章本身的问题，其他文章也无法保存。
但是，用系统用户创建新文章是可以的，并且之后可以编辑。
Discourse 3.2.0.beta5-dev
控制台中的错误：
ajax-error.js:35 SyntaxError: Unexpected token '<', "<!--<!DOCTYPE "... is not valid JSON
at Function.parse [as parseJSON] (<anonymous>)
at l (ajax-error.js:31:20)
at c (ajax-error.js:74:10)
at ajax-error.js:83:11
at _ (rsvp.js:434:1)
at y (rsvp.js:420:1)
at m (rsvp.js:369:1)
at invoke (backburner.js.js:282:1)
at h.flush (backburner.js.js:197:1)
at p.flush (backburner.js.js:358:1)
at B._end (backburner.js.js:798:1)
at B.end (backburner.js.js:589:1)
at B._run (backburner.js.js:842:1)
at B.run (backburner.js.js:624:1)
at e.run (index.js:75:1)
at t.error (ajax.js:148:7)
at l (jquery.js:3223:31)
at Object.fireWith [as rejectWith] (jquery.js:3353:7)
at T (jquery.js:9629:14)
at XMLHttpRequest.<anonymous> (jquery.js:9888:9)
l @ ajax-error.js:35
c @ ajax-error.js:74
(anonymous) @ ajax-error.js:83
_ @ rsvp.js:434
y @ rsvp.js:420
m @ rsvp.js:369
invoke @ backburner.js.js:282
flush @ backburner.js.js:197
flush @ backburner.js.js:358
_end @ backburner.js.js:798
end @ backburner.js.js:589
_run @ backburner.js.js:842
run @ backburner.js.js:624
e.run @ index.js:75
t.error @ ajax.js:148
l @ jquery.js:3223
fireWith @ jquery.js:3353
T @ jquery.js:9629
(anonymous) @ jquery.js:9888
load (async)
send @ jquery.js:9907
ajax @ jquery.js:9521
f @ ajax.js:173
(anonymous) @ rsvp.js:457
k @ rsvp.js:913
k @ ajax.js:192
update @ rest.js:119
update @ store.js:197
update @ rest.js:30
save @ rest.js:89
(anonymous) @ composer.js:1011
_ @ rsvp.js:434
y @ rsvp.js:420
invoke @ backburner.js.js:282
flush @ backburner.js.js:197
flush @ backburner.js.js:358
_end @ backburner.js.js:798
end @ backburner.js.js:589
_run @ backburner.js.js:842
run @ backburner.js.js:624
e.run @ index.js:75
t.success @ ajax.js:118
l @ jquery.js:3223
fireWith @ jquery.js:3353
T @ jquery.js:9627
(anonymous) @ jquery.js:9888
load (async)
send @ jquery.js:9907
ajax @ jquery.js:9521
f @ ajax.js:173
(anonymous) @ rsvp.js:457
k @ rsvp.js:913
k @ ajax.js:192
update @ topic.js:722
(anonymous) @ composer.js:983
_ @ rsvp.js:434
(anonymous) @ rsvp.js:489
invoke @ backburner.js.js:282
flush @ backburner.js.js:197
flush @ backburner.js.js:358
_end @ backburner.js.js:798
B._boundAutorunEnd @ backburner.js.js:523
Promise.then (async)
n @ backburner.js.js:26
flush @ index.js:40
_scheduleAutorun @ backburner.js.js:964
_ensureInstance @ backburner.js.js:955
ensureInstance @ backburner.js.js:767
scheduleRevalidate @ index.js:3337
dirtyTag @ validator.js:368
T @ validator.js:440
M @ index.js:485
D @ index.js:521
Ae @ index.js:1796
Ce @ index.js:1772
set @ observable.js:23
save @ composer.js:1022
saveAction @ composer.js:822
_triggerAction @ d-button.js:115
click @ d-button.js:87