REST structure response differe in JSON and XML

On XWiki 9.10.1 the structure of the REST answer is different between JSON or XML.

For example for the resquest :
.../rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/?media=xml

I have the answer :
{{<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<objects xmlns="http://www.xwiki.org">
<objectSummary>
<link href="http://xwiki.local.in.forge.education.gouv.fr:5080/rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/0" rel="http://www.xwiki.org/rel/object"/><link href="http://xwiki.local.in.forge.education.gouv.fr:5080/rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/0/properties" rel="http://www.xwiki.org/rel/properties"/><id>xwiki:XWiki.XWikiPreferences:369eb46f-6311-437b-a3a1-38755f324898</id><guid>369eb46f-6311-437b-a3a1-38755f324898</guid><pageId>xwiki:XWiki.XWikiPreferences</pageId><pageVersion>91.1</pageVersion><wiki>xwiki</wiki><space>XWiki</space><pageName>XWikiPreferences</pageName><pageAuthor>XWiki.admin_1</pageAuthor><className>XWiki.XWikiGlobalRights</className><number>0</number><headline>1</headline></objectSummary><objectSummary><link href="http://xwiki.local.in.forge.education.gouv.fr:5080/rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/1" rel="http://www.xwiki.org/rel/object"/><link href="http://xwiki.local.in.forge.education.gouv.fr:5080/rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/1/properties" rel="http://www.xwiki.org/rel/properties"/><id>xwiki:XWiki.XWikiPreferences:e9630277-a371-4228-8659-8a1abc7bacfa</id><guid>e9630277-a371-4228-8659-8a1abc7bacfa</guid><pageId>xwiki:XWiki.XWikiPreferences</pageId><pageVersion>91.1</pageVersion><wiki>xwiki</wiki><space>XWiki</space><pageName>XWikiPreferences</pageName><pageAuthor>XWiki.admin_1</pageAuthor><className>XWiki.XWikiGlobalRights</className><number>1</number><headline>1</headline></objectSummary></objects>}}

For the same request formated in JSON :
.../wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/?media=json

I have the answer :

{{{"links":[],"objectSummaries":[{"links":[

{"href":"http://xwiki.local.in.forge.education.gouv.fr:5080/rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/0","rel":"http://www.xwiki.org/rel/object","type":null,"hrefLang":null}

,

{"href":"http://xwiki.local.in.forge.education.gouv.fr:5080/rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/0/properties","rel":"http://www.xwiki.org/rel/properties","type":null,"hrefLang":null}

],"id":"xwiki:XWiki.XWikiPreferences:369eb46f-6311-437b-a3a1-38755f324898","guid":"369eb46f-6311-437b-a3a1-38755f324898","pageId":"xwiki:XWiki.XWikiPreferences","pageVersion":"91.1","wiki":"xwiki","space":"XWiki","pageName":"XWikiPreferences","pageAuthor":"XWiki.admin_1","pageAuthorName":null,"className":"XWiki.XWikiGlobalRights","number":0,"headline":"1"},{"links":[

{"href":"http://xwiki.local.in.forge.education.gouv.fr:5080/rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/1","rel":"http://www.xwiki.org/rel/object","type":null,"hrefLang":null}

,

{"href":"http://xwiki.local.in.forge.education.gouv.fr:5080/rest/wikis/xwiki/spaces/XWiki/pages/XWikiPreferences/objects/XWiki.XWikiGlobalRights/1/properties","rel":"http://www.xwiki.org/rel/properties","type":null,"hrefLang":null}

],"id":"xwiki:XWiki.XWikiPreferences:e9630277-a371-4228-8659-8a1abc7bacfa","guid":"e9630277-a371-4228-8659-8a1abc7bacfa","pageId":"xwiki:XWiki.XWikiPreferences","pageVersion":"91.1","wiki":"xwiki","space":"XWiki","pageName":"XWikiPreferences","pageAuthor":"XWiki.admin_1","pageAuthorName":null,"className":"XWiki.XWikiGlobalRights","number":1,"headline":"1"}]}}}

In XML we have :
<objects><objectSummary>...</objectSummary></objects>

In JSON we have :
"objectSummaries":[...]

Regards.