am: add t4255 for submodule updates

diff --git a/t/t1410-reflog.sh b/t/t1410-reflog.sh
index 236b13a3ab27f54808fa88574738747e3c3936b1..8cab06f90a52b82518aca6f7baa0530eb77ab986 100755 (executable)
--- a/t/t1410-reflog.sh
+++ b/t/t1410-reflog.sh
@@ -245,4 +245,12 @@ test_expect_success 'gc.reflogexpire=false' '
 
 '
 
+test_expect_success 'checkout should not delete log for packed ref' '
+       test $(git reflog master | wc -l) = 4 &&
+       git branch foo &&
+       git pack-refs --all &&
+       git checkout foo &&
+       test $(git reflog master | wc -l) = 4
+'
+
 test_done