[PATCH] rebase -i: Remember merge options beyond continue actions

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If the user explicitly specified a merge strategy or strategy options,
"rebase --interactive" started using the default merge strategy again
after "rebase --continue".

This problem gets fixed by this commit. Add test.

Since the "rebase" options "-s" and "-X" imply "--merge", we can simply
remove the "do_merge" guard in the interactive mode and always compile
the "cherry-pick" arguments from the "rebase" state variables "strategy"
and "strategy_opts".
---
 git-rebase--interactive.sh    | 18 +++++++-----------
 t/t3404-rebase-interactive.sh | 16 ++++++++++++++++
 2 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index 6ec9d3c..817c933 100644
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -77,17 +77,13 @@ amend="$state_dir"/amend
 rewritten_list="$state_dir"/rewritten-list
 rewritten_pending="$state_dir"/rewritten-pending
 
-strategy_args=
-if test -n "$do_merge"
-then
-	strategy_args=${strategy:+--strategy=$strategy}
-	eval '
-		for strategy_opt in '"$strategy_opts"'
-		do
-			strategy_args="$strategy_args -X$(git rev-parse --sq-quote "${strategy_opt#--}")"
-		done
-	'
-fi
+strategy_args=${strategy:+--strategy=$strategy}
+eval '
+	for strategy_opt in '"$strategy_opts"'
+	do
+		strategy_args="$strategy_args -X$(git rev-parse --sq-quote "${strategy_opt#--}")"
+	done
+'
 
 GIT_CHERRY_PICK_HELP="$resolvemsg"
 export GIT_CHERRY_PICK_HELP
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index c0023a5..73849f1 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -998,6 +998,22 @@ test_expect_success 'rebase -i with --strategy and -X' '
 	test $(cat file1) = Z
 '
 
+test_expect_success 'interrupted rebase -i with --strategy and -X' '
+	git checkout -b conflict-merge-use-theirs-interrupted conflict-branch &&
+	git reset --hard HEAD^ &&
+	>breakpoint &&
+	git add breakpoint &&
+	git commit -m "breakpoint for interactive mode" &&
+	echo five >conflict &&
+	echo Z >file1 &&
+	git commit -a -m "one file conflict" &&
+	set_fake_editor &&
+	FAKE_LINES="edit 1 2" git rebase -i --strategy=recursive -Xours conflict-branch &&
+	git rebase --continue &&
+	test $(git show conflict-branch:conflict) = $(cat conflict) &&
+	test $(cat file1) = Z
+'
+
 test_expect_success 'rebase -i error on commits with \ in message' '
 	current_head=$(git rev-parse HEAD)
 	test_when_finished "git rebase --abort; git reset --hard $current_head; rm -f error" &&
-- 
2.0.0

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