diff --git a/doc/backends/comment_24_f90b8eeae8d150eca6a91416f20eb223._comment b/doc/backends/comment_24_f90b8eeae8d150eca6a91416f20eb223._comment
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+[[!comment format=mdwn
+ username="Ilya_Shlyakhter"
+ avatar="http://cdn.libravatar.org/avatar/1647044369aa7747829c38b9dcc84df0"
+ subject="comment 24"
+ date="2018-09-19T16:50:05Z"
+ content="""
+It seems that *E backends ignore file extensions longer than four chars: https://git-annex.branchable.com/bugs/file_extensions_of___62__4_chars_ignored_by___42__E_backends/
+Is there some reason for doing it this way?
+
+"""]]