Error in accept and decline share using webUI

[jasson99]

Describe the bug

When a pending share is tried to be accepted/declined using webUI, an error is shown. However, the share is accepted even with an error in the UI.

Steps to reproduce

Steps to reproduce the behavior:

1. Create user Alice and Brian
2. As user Alice, share a new created folder simple-folder with user Brian
3. As user Brian, decline the pending share using the decline action button
4. As user Brian, accept the pending share using the accept action button

Expected behavior

The share should be accepted/declined without any error in the webUI.

Actual behavior

With the decline action, an error is shown in the webUI. And the share is still in pending state until the page is reloaded.

With the accept action, an error is shown in the webUI. However, the share is shown as accepted only after the page reload.

[kulmann]

Related to owncloud/web#4946

[ScharfViktor]

re-tested with local server oCIS version 1.11.0 and web 4.1.0
Works correct, @jasson99 please close

Decline action:

Accept action after decline: