diff -r dd9e28612468 -r 39ddb1121c4e hgext/largefiles/lfcommands.py
--- a/hgext/largefiles/lfcommands.py	Sat Sep 12 11:18:12 2020 -0700
+++ b/hgext/largefiles/lfcommands.py	Fri Sep 11 10:47:17 2020 +0900
@@ -485,7 +485,7 @@
     return ([], [])
 
 
-def downloadlfiles(ui, repo, rev=None):
+def downloadlfiles(ui, repo):
     match = scmutil.match(repo[None], [repo.wjoin(lfutil.shortname)], {})
 
     def prepare(ctx, fns):
@@ -493,11 +493,10 @@
 
     totalsuccess = 0
     totalmissing = 0
-    if rev != []:  # walkchangerevs on empty list would return all revs
-        for ctx in cmdutil.walkchangerevs(repo, match, {b'rev': rev}, prepare):
-            success, missing = cachelfiles(ui, repo, ctx.node())
-            totalsuccess += len(success)
-            totalmissing += len(missing)
+    for ctx in cmdutil.walkchangerevs(repo, match, {b'rev': None}, prepare):
+        success, missing = cachelfiles(ui, repo, ctx.node())
+        totalsuccess += len(success)
+        totalmissing += len(missing)
     ui.status(_(b"%d additional largefiles cached\n") % totalsuccess)
     if totalmissing > 0:
         ui.status(_(b"%d largefiles failed to download\n") % totalmissing)