Shared link's name is overwritten on edit if the same name is not provided on the body of the request

[SamuAlfageme]

This is a follow-up of owncloud/client#5658, reproduction steps with the Desktop client can be found there, as well as the reason behind this issue.

Server version:

ownCloud version: 10.0 beta1

Steps to reproduce

curl -H 'Ocs-APIREQUEST:true' 
   -H 'Content-Type:application/x-www-form-urlencoded' 
   -H 'Authorization:Basic [...]' 
   -H 'User-Agent:Mozilla/5.0 (Macintosh) mirall/2.3.2-nightly20170328 (build 4154) (testpilotcloud)'
   -H 'Accept:*/*' 
   -H 'Cookie:oc_sessionPassphrase=[...]' 
   -H 'Content-Length:21' 
   -H 'Connection:Keep-Alive' 
   -H 'Accept-Encoding:gzip, deflate' 
   -H 'Accept-Language:en-US,*' 
   -H 'Host:server.tld' 
   -X PUT 'http://server.tld/ocs/v1.php/apps/files_sharing/api/v1/shares/1?format=json' 
   --data-binary 'expireDate=2017-04-13'

Expected behavior

If the field name is not provided in the body of the request, it should not change.

Actual behavior

The default shared link's name is restored.

[PVince81]

Ah yeah... pseudo-REST which is most a PATCH then a PUT.

I'll have a look, maybe the backend is reading "null" instead of skipping the field.

[PVince81]

PR here #27529

[lock]

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