How can it be that from this MediaWiki 1.31 wiki I get o2jw5c565achwt31azfnu9zc2zxgqpr (31 characters?) and 5702e4d5fd9173246331a889294caf01a3ad3706 for the same revision?
https://gobblerpedia.org/w/api.php?action=query&titles=Main%20Page&export=1&format=xml
I don't see the same in https://gobblerpedia.org/w/api.php?action=query&list=allrevisions&arvlimit=10&arvnamespace=0&arvprop=ids|timestamp|user|userid|size|sha1|contentmodel|comment|content
Also attached at F31606900 F31606901 F31606902
<page>
<title>Main Page</title>
<ns>0</ns>
<id>1</id>
<redirect title="Main page" />
<revision>
<id>3677</id>
<parentid>1</parentid>
<timestamp>2018-12-19T22:15:31Z</timestamp>
<contributor>
<username>Wiki-admin</username>
<id>45</id>
</contributor>
<comment>Redirected page to [[Main page]]</comment>
<model>wikitext</model>
<format>text/x-wiki</format>
<text xml:space="preserve" bytes="23">#REDIRECT [[Main_page]]</text>
<sha1>o2jw5c565achwt31azfnu9zc2zxgqpr</sha1>
</revision>
</page>
<page>
<title>Main Page</title>
<ns>0</ns>
<id>1</id>
<revision>
<id>3677</id>
<parentid>1</parentid>
<timestamp>2018-12-19T22:15:31Z</timestamp>
<contributor>
<id>45</id>
<username>Wiki-admin</username>
</contributor>
<comment>Redirected page to [[Main page]]</comment>
<text bytes="23" space="preserve">#REDIRECT [[Main_page]]</text>
<model>wikitext</model>
<sha1>ce111c28c158bacd1ad89fbacb33e48d0e2e383f</sha1>
</revision>
<revision>
<id>1</id>
<parentid>0</parentid>
<timestamp>2018-12-13T21:14:03Z</timestamp>
<contributor>
<id>0</id>
<username>MediaWiki default</username>
</contributor>
<comment></comment>
<text bytes="735" space="preserve"><strong>MediaWiki has been installed.</strong>
Consult the [https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents User's Guide] for information on using the wiki software.
== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]</text>
<model>wikitext</model>
<sha1>5702e4d5fd9173246331a889294caf01a3ad3706</sha1>
</revision>
</page>