Error when using compare feature in history when an attachment is deleted

Hello,

On a page with some attachments, I delete one and going to page history, select current version and previous version, click on "Compare selected version" then xwiki displayed this error message:
“Error while evaluating velocity template changesdoc.vm”

at 95:/skins/flamingo/view.vm[line 111, column 38]
...
	... 153 more
Caused by: com.xpn.xwiki.XWikiException: Error number 3002 in 3: The attachment could not be found in the filesystem attachment store (/xxx/data_xwiki/storage/xwiki/Encyclop%C3%A9die/Outils+du+g%C3%A9nie+logiciel/Le+DevOps+au+CPII/WebHome/~this/attachments/agilite_si.svg/agilite_si.svg).

 More details on xwiki forum: https://forum.xwiki.org/t/error-while-evaluating-velocity-template-changesdoc-vm-on-xwiki-9-11-4/3864

Ty

Pascal B

Reproducing steps:

• Upload a textual attachment to a document (not a binary file)
• Delete the attachment
• Compare both revisions

Expected results:

• The diff show the missing attachment

Obtained results:

• Error message:

  Error number 4001 in 4: Error while evaluating velocity template changesdoc.vm

See the stacktrace attached.