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+### Please describe the problem.
+I've enabled annex.genmetadata to track file modification time. When I unlock, edit and re-add a file, annex imports the modification data from its previous life instead of using the edited (or unedited) file's.
+
+Annex should always use the added file's mtime as modification time, even if there is conflicting pre-existing metadata. Even better would be if it stored modification time per-object, not worktree file.
+
+### What steps will reproduce the problem?
+```git init testannex;
+cd testannex;
+git annex init;
+git config annex.genmetadata true;
+touch bar;
+git annex add bar;
+git annex sync;
+git annex unlock bar;
+vim bar;
+git annex add bar```
+
+output: `Copied metadata from old version of bar to new version. If you don't want this copied metadata, run: git annex metadata --remove-all bar`
+
+### What version of git-annex are you using? On what operating system?
+6.20180227, various Linuxes.
+