diff --git a/doc/todo/Add_FAT_mode_without_double_using_disk_space.mdwn b/doc/todo/Add_FAT_mode_without_double_using_disk_space.mdwn
index ce47e57d49..2ea193f6b3 100644
--- a/doc/todo/Add_FAT_mode_without_double_using_disk_space.mdwn
+++ b/doc/todo/Add_FAT_mode_without_double_using_disk_space.mdwn
@@ -3,3 +3,6 @@ At the FAT disks annex uses ajusted unlocked branch. Files use double space: in
 
 # As I wonder
 At such disks, with option annex.thin, annex uses only file tree for keeping content. Content of the files in the .git folder is wiped.
+
+> [[done]], dup of other todo, and I don't know how to avoid the problem
+> with git deleting the file. --[[Joey]]
diff --git a/doc/todo/Add_FAT_mode_without_double_using_disk_space/comment_1_133738096ed65997f2f4e9cb3332f957._comment b/doc/todo/Add_FAT_mode_without_double_using_disk_space/comment_1_133738096ed65997f2f4e9cb3332f957._comment
new file mode 100644
index 0000000000..dbd06d7ad5
--- /dev/null
+++ b/doc/todo/Add_FAT_mode_without_double_using_disk_space/comment_1_133738096ed65997f2f4e9cb3332f957._comment
@@ -0,0 +1,15 @@
+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 1"""
+ date="2021-02-08T18:17:00Z"
+ content="""
+This has the following problem: You run git pull. A file got deleted. git
+deletes the file in the repository directory. That was the only copy of the
+content, so it's now impossible to revert the deletion and get the file
+back, which you're supposed to be able to do.
+
+This is why git-annex has to either make a copy or hard link the file
+away for safekeeping.
+
+As already discussed in [[annex.thin without hardlinks]].
+"""]]