diff --git a/doc/design/exporting_trees_to_special_remotes/comment_21_062098e1f54b874467793e4487a45a9b._comment b/doc/design/exporting_trees_to_special_remotes/comment_21_062098e1f54b874467793e4487a45a9b._comment
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+[[!comment format=mdwn
+ username="yarikoptic"
+ avatar="http://cdn.libravatar.org/avatar/f11e9c84cb18d26a1748c33b48c924b4"
+ subject="comment 21"
+ date="2018-02-07T20:01:53Z"
+ content="""
+Ok, gotcha.  Shouldn't then EXTENSION entries also be somehow versioned per each one of them? or if needed a new extension would be born by appending a version to its name (e.g. as with all those imap, imap2, imap3, ... ;-))
+"""]]