The "By" value is wrong; I've never edited this page.
The "Publish"-button, however, has the right author.
Note the same date and timestamp as the latest version in the image above.
Looking at the api call to /login/cms/stores/contentversion?contentLink=[pageid], the json response for some of the versions of this page has the wrong "savedBy" value, but correct "statusChangedBy" value.
episerver.ui 10.12.8.0
The version gadget looks like this.
The "By" value is wrong; I've never edited this page.
The "Publish"-button, however, has the right author.
Note the same date and timestamp as the latest version in the image above.
Looking at the api call to /login/cms/stores/contentversion?contentLink=[pageid], the json response for some of the versions of this page has the wrong "savedBy" value, but correct "statusChangedBy" value.
Others have also seen this bug:
https://world.episerver.com/forum/developer-forum/-Episerver-75-CMS/Thread-Container/2019/4/versions-gadget-shows-different-person/