Merge branch 'sb/maint-pull-rebase'

* sb/maint-pull-rebase:
  pull: support rebased upstream + fetch + pull --rebase
  t5520-pull: Test for rebased upstream + fetch + pull --rebase

Author: gitster

git-pull.sh

@@ -124,10 +124,18 @@ test true = "$rebase" && {
 	git diff-index --ignore-submodules --cached --quiet HEAD -- ||
 	die "refusing to pull with rebase: your working tree is not up-to-date"
 
+	oldremoteref= &&
 	. git-parse-remote &&
-	reflist="$(get_remote_merge_branch "$@" 2>/dev/null)" &&
-	oldremoteref="$(git rev-parse -q --verify \
-		"$reflist")"
+	remoteref="$(get_remote_merge_branch "$@" 2>/dev/null)" &&
+	oldremoteref="$(git rev-parse -q --verify "$remoteref")" &&
+	for reflog in $(git rev-list -g $remoteref 2>/dev/null)
+	do
+		if test "$reflog" = "$(git merge-base $reflog $curr_branch)"
+		then
+			oldremoteref="$reflog"
+			break
+		fi
+	done
 }
 orig_head=$(git rev-parse -q --verify HEAD)
 git fetch $verbosity --update-head-ok "$@" || exit 1

t/t5520-pull.sh

@@ -117,6 +117,19 @@ test_expect_success '--rebase with rebased default upstream' '
 
 '
 
+test_expect_success 'rebased upstream + fetch + pull --rebase' '
+
+	git update-ref refs/remotes/me/copy copy-orig &&
+	git reset --hard to-rebase-orig &&
+	git checkout --track -b to-rebase3 me/copy &&
+	git reset --hard to-rebase-orig &&
+	git fetch &&
+	git pull --rebase &&
+	test "conflicting modification" = "$(cat file)" &&
+	test file = "$(cat file2)"
+
+'
+
 test_expect_success 'pull --rebase dies early with dirty working directory' '
 
 	git checkout to-rebase &&