Such as on
https://en.wikipedia.beta.wmflabs.org/wiki/Benjamin_Kowalewicz?veaction=edit
{F34457689}
Should look like read mode:
{F34457695}
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Ref {T279388}
Places to check:
* [x] Main VE surface
** Fixed after https://gerrit.wikimedia.org/r/c/mediawiki/extensions/VisualEditor/+/692361
* [x] TargetWidgets, such as in the media dialog
** ve.ui.MWTargetWidget adds the `mw-body-content` class
* [x] ContentTranslation
** ve.init.mw.CXTarget adds the `mw-body-content` class
* [x] Preview within 2017WTE
** ve.ui.MWSaveDialog adds the `mw-body-content` class
* [x] Reference previews inside VE reference context popups
** ve.ui.MWPreviewElement adds the `mw-body-content` class
* [x] Visual diffs (both within VE, and on the history page)
** [x] Within VE
*** ve.ui.MWSaveDialog adds the `mw-body-content` class
** [x] History page
*** Content is already appended inside the `mw-body-content` wrapper
* [x] DiscussionTools' Reply Tool (and new topic tool, but should be the same)
** Worked before as reply tool is appended within existing `mw-body-content` for the page. Appears to still work after https://gerrit.wikimedia.org/r/c/mediawiki/extensions/VisualEditor/+/692361.
* [ ] GrowthExperiments link suggestion tool (cc @kostajh, @mewoph)