Filter Streams - Escape @ in filenames

We recently experimented with Confluence to XWiki migrations and found a bug regarding @ characters in attachment names. The attachments were migrated without a problem, but the attachment links are broken. It prefixes the file name with the space and adds a ".WebHome" behind the file name, like:

[[image:attach:SPACE.FILENAME_BEFORE_AT.WebHome@FILENAME_AFTER_AT.png]]

It should escape the @ character instead.

We only tested this on 13.1, so it might have been fixed on the current version. Can someone reproduce that on the current version?

Versions

Filter Streams Converter Application: Version 13.1

Confluence Migrator Application - API: Version 1.0.8

Confluence XHTML Syntax: Version 9.15.3

Confluence Syntax 1.1: Version 9.15.3

Confluence XML: Version 9.15.3

Filter streams options

Input Type: Confluence XML input stream (confluence+xml)

XWiki Conversion: true

Store Confluence Details: true

Output Type: XWiki instance output stream (xwiki+instance)