Re: [RFH] revision limiting sometimes ignored

[Junio C Hamano <gitster@pobox.com>]

By the way, the issue does not have anything to do with merges.

This is the absolute minimum (and reliable) reproduction recipe.
You need four commits.  If you remove "commit three &&", the
traversal will contaminate "one".

---

 t/t6009-rev-list-parent.sh |   38 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)

diff --git a/t/t6009-rev-list-parent.sh b/t/t6009-rev-list-parent.sh
new file mode 100755
index 0000000..1da5dbb
--- /dev/null
+++ b/t/t6009-rev-list-parent.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+test_description='properly cull all ancestors'
+
+. ./test-lib.sh
+
+commit () {
+	test_tick &&
+	echo $1 >file &&
+	git commit -a -m $1 &&
+	git tag $1
+}
+
+test_expect_success setup '
+
+	touch file &&
+	git add file &&
+
+	commit one &&
+
+	test_tick=$(($test_tick - 2400))
+
+	commit two &&
+	commit three &&
+	commit four &&
+
+	git log --pretty=oneline --abbrev-commit
+'
+
+test_expect_failure 'one is ancestor of others and should not be shown' '
+
+	git rev-list one --not four >result &&
+	>expect &&
+	diff -u expect result 
+
+'
+
+test_done