--- a/mercurial/bookmarks.py	Mon Nov 11 22:10:26 2019 +0900
+++ b/mercurial/bookmarks.py	Sat Nov 09 12:09:50 2019 +0900
@@ -965,7 +965,7 @@
             newact = mark
         if inactive and mark == repo._activebookmark:
             deactivate(repo)
-            return
+            continue
         tgt = cur
         if rev:
             ctx = scmutil.revsingle(repo, rev)
@@ -976,6 +976,10 @@
             changes.append((bm, None))
         changes.append((mark, tgt))
 
+    # nothing changed but for the one deactivated above
+    if not changes:
+        return
+
     if hiddenrev:
         repo.ui.warn(_(b"bookmarking hidden changeset %s\n") % hiddenrev)