Importing XAR containing pages with attachments generate an error in the logs when using the packager plugin

[INFO]   ... Importing XAR file: /Users/vmassol/.m2/repository/org/xwiki/platform/xwiki-platform-administration-ui/12.8-SNAPSHOT/xwiki-platform-administration-ui-12.8-SNAPSHOT.xar
[ERROR] Failed to create the source from the content of the attachment [Attachment xwiki:XWiki.GoogleAnalyticsCode@analytics.png]
com.xpn.xwiki.XWikiException: Error number 3002 in 3: The attachment [Attachment xwiki:XWiki.GoogleAnalyticsCode@analytics.png] (file /Users/vmassol/dev/xwiki/xwiki-platform/xwiki-platform-core/xwiki-platform-observation/xwiki-platform-observation-test/xwiki-platform-observation-test-tests/target/xwiki-1/data/store/file/xwiki/1/7/b99e91f24d95f0e9391c1a4ee3f13f/attachments/2/5/e57ab7e5d01e79818e87dc945b65d9/f.png) could not be found in the filesystem attachment store.
    at org.xwiki.store.legacy.store.internal.FilesystemAttachmentStore.loadAttachmentContent (FilesystemAttachmentStore.java:214)
    at com.xpn.xwiki.doc.XWikiAttachment.loadAttachmentContent (XWikiAttachment.java:1094)
    at com.xpn.xwiki.doc.XWikiAttachment.getAttachmentContent (XWikiAttachment.java:785)
    at com.xpn.xwiki.internal.filter.input.XWikiAttachmentEventGenerator.getAttachmentSource (XWikiAttachmentEventGenerator.java:159)
    at com.xpn.xwiki.internal.filter.input.XWikiAttachmentEventGenerator.getAttachmentSource (XWikiAttachmentEventGenerator.java:148)
    at com.xpn.xwiki.internal.filter.input.XWikiAttachmentEventGenerator.beginEndAttachment (XWikiAttachmentEventGenerator.java:130)
    at com.xpn.xwiki.internal.filter.input.XWikiAttachmentEventGenerator.writeAttachment (XWikiAttachmentEventGenerator.java:120)
    at com.xpn.xwiki.internal.filter.input.XWikiAttachmentEventGenerator.write (XWikiAttachmentEventGenerator.java:112)
    at com.xpn.xwiki.internal.filter.input.XWikiDocumentLocaleEventGenerator.writeRevision (XWikiDocumentLocaleEventGenerator.java:204)
    at com.xpn.xwiki.internal.filter.input.XWikiDocumentLocaleEventGenerator.write (XWikiDocumentLocaleEventGenerator.java:125)
    at com.xpn.xwiki.internal.filter.input.XWikiDocumentLocaleEventGenerator.write (XWikiDocumentLocaleEventGenerator.java:56)
    at org.xwiki.filter.instance.internal.input.AbstractBeanEntityEventGenerator.write (AbstractBeanEntityEventGenerator.java:131)
    at com.xpn.xwiki.internal.filter.XWikiDocumentFilterUtils.exportEntity (XWikiDocumentFilterUtils.java:334)
    at org.xwiki.store.legacy.store.internal.DeletedDocumentContentFileSerializer.serialize (DeletedDocumentContentFileSerializer.java:85)
    at org.xwiki.store.FileSaveTransactionRunnable.onRun (FileSaveTransactionRunnable.java:156)
    at org.xwiki.store.TransactionRunnable.run (TransactionRunnable.java:318)
    at org.xwiki.store.StartableTransactionRunnable.start (StartableTransactionRunnable.java:54)
    at org.xwiki.store.legacy.store.internal.FilesystemRecycleBinContentStore.save (FilesystemRecycleBinContentStore.java:89)
    at com.xpn.xwiki.store.XWikiHibernateRecycleBinStore.lambda$saveToRecycleBin$0 (XWikiHibernateRecycleBinStore.java:284)
    at com.xpn.xwiki.store.XWikiHibernateBaseStore.execute (XWikiHibernateBaseStore.java:820)
    at com.xpn.xwiki.store.XWikiHibernateBaseStore.executeWrite (XWikiHibernateBaseStore.java:935)
    at com.xpn.xwiki.store.XWikiHibernateRecycleBinStore.saveToRecycleBin (XWikiHibernateRecycleBinStore.java:274)
    at com.xpn.xwiki.XWiki.deleteDocument (XWiki.java:4564)
    at com.xpn.xwiki.XWiki.saveDocument (XWiki.java:2022)
    at com.xpn.xwiki.XWiki.saveDocument (XWiki.java:1963)
    at com.xpn.xwiki.plugin.packaging.Package.installDocument (Package.java:911)
    at com.xpn.xwiki.plugin.packaging.Package.install (Package.java:696)
    at com.xpn.xwiki.tool.backup.Importer.installWithUser (Importer.java:153)
    at com.xpn.xwiki.tool.backup.Importer.importXAR (Importer.java:128)
    at org.xwiki.tool.packager.PackageMojo.importXARs (PackageMojo.java:407)
    at org.xwiki.tool.packager.PackageMojo.executeInternal (PackageMojo.java:260)
    at org.xwiki.tool.extension.util.AbstractExtensionMojo.execute (AbstractExtensionMojo.java:134)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)