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@@ -2,7 +2,7 @@ It's possible for data to accumulate in the annex that no files point to
anymore. One way it can happen is if you `git rm` a file without
first calling `git annex drop`. And, when you modify an annexed file, the old
content of the file remains in the annex. Another way is when migrating
-between backends.
+between key-value [[backends|backend]].
This might be historical data you want to preserve, so git-annex defaults to
preserving it. So from time to time, you may want to check for such data and