work around strange auto-init bug

git-annex get when run as the first git-annex command in a new repo did not
populate unlocked files. (Reversion in version 8.20210621)

I am not entirely happy with this, because I don't understand how
428c91606b caused the problem in the first
place, and I don't fully understand how skipping calling scanAnnexedFiles
during autoinit avoids the problem.

Kept the explicit call to scanAnnexedFiles during git-annex init,
so that when reconcileStaged is expensive, it can be made to run then,
rather than at some later point when the information is needed.

Sponsored-by: Brock Spratlen on Patreon

Command/Reinit.hs

@@ -35,6 +35,6 @@ perform s = do
 		then return $ toUUID s
 		else Remote.nameToUUID s
 	storeUUID u
-	initialize' Nothing
+	initialize' False Nothing
 	Annex.SpecialRemote.autoEnable
 	next $ return True