--- /dev/null
+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 3"""
+ date="2022-07-22T15:46:46Z"
+ content="""
+`git write-tree` has always locked the index, so it seems something else
+has changed to also lock the index when core.untrackedCache is set, that
+did not before.
+
+Probably `git update-index`, since that's what looks at the config.
+`git-annex init` does run that, before `git write-tree`, but it
+waits for it to exit. So I don't understand what would have the index still
+locked.
+
+I wonder if this is related to some other config also being set, such as
+core.fsmonitor.
+"""]]