diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -2610,8 +2610,9 @@
                         skip[fn] = True
                         if copy:
                             skip[copy] = True
-            del matches[rev]
             del revfiles[rev]
+            if not revfiles:
+                matches.clear()
     fm.end()
 
     return not found