Reproducible locally and on test-commons.
Steps to Reproduce:
- Create a depicts statement for a file
- Navigate to the file page history
- Click 'undo' for the history entry associated with your recent 'depicts' statement addition
Stack trace:
[5080666c05b5aa675ac54998] /mediawiki/index.php?title=File:807px-2017.05.13.-04-Bruehl_Rohrhof--Gemeiner_Schwefelporling.jpg&action=mcrundo&undo=5&undoafter=3 InvalidArgumentException from line 3276 of /var/www/mediawiki/includes/Revision/RevisionStore.php: Unsaved revision passed
Backtrace:
#0 /var/www/mediawiki/includes/diff/DifferenceEngine.php(1470): MediaWiki\Revision\RevisionStore->countRevisionsBetween(MediaWiki\Revision\MutableRevisionRecord, MediaWiki\Revision\RevisionStoreRecord, integer)
#1 /var/www/mediawiki/includes/diff/DifferenceEngine.php(998): DifferenceEngine->getMultiNotice()
#2 /var/www/mediawiki/includes/actions/McrUndoAction.php(242): DifferenceEngine->getDiff(string, string)
#3 /var/www/mediawiki/includes/actions/McrUndoAction.php(374): McrUndoAction->generateDiffOrPreview()
#4 /var/www/mediawiki/includes/htmlform/fields/HTMLInfoField.php(25): McrUndoAction->{closure}(array)
#5 /var/www/mediawiki/includes/htmlform/HTMLForm.php(1699): HTMLInfoField->getDefault()
#6 /var/www/mediawiki/includes/htmlform/HTMLForm.php(1299): HTMLForm->displaySection(array, string)
#7 /var/www/mediawiki/includes/htmlform/OOUIHTMLForm.php(254): HTMLForm->getBody()
#8 /var/www/mediawiki/includes/htmlform/HTMLForm.php(1076): OOUIHTMLForm->getBody()
#9 /var/www/mediawiki/includes/htmlform/HTMLForm.php(1055): HTMLForm->getHTML(boolean)
#10 /var/www/mediawiki/includes/htmlform/HTMLForm.php(606): HTMLForm->displayForm(boolean)
#11 /var/www/mediawiki/includes/actions/FormAction.php(143): HTMLForm->show()
#12 /var/www/mediawiki/includes/actions/McrUndoAction.php(90): FormAction->show()
#13 /var/www/mediawiki/includes/MediaWiki.php(514): McrUndoAction->show()
#14 /var/www/mediawiki/includes/MediaWiki.php(304): MediaWiki->performAction(ImagePage, Title)
#15 /var/www/mediawiki/includes/MediaWiki.php(967): MediaWiki->performRequest()
#16 /var/www/mediawiki/includes/MediaWiki.php(530): MediaWiki->main()
#17 /var/www/mediawiki/index.php(44): MediaWiki->run()
#18 {main}