Merge branch 'rj/bisect-already-used-branch'

Allow "git bisect reset" to check out the original branch when the
branch is already checked out in a different worktree linked to the
same repository.

* rj/bisect-already-used-branch:
  bisect: fix "reset" when branch is checked out elsewhere

1 files changed, 23 insertions, 0 deletions

diff --git a/t/t6030-bisect-porcelain.sh b/t/t6030-bisect-porcelain.sh
index 3ba4fdf615..fb01bd6abc 100755
--- a/t/t6030-bisect-porcelain.sh
+++ b/t/t6030-bisect-porcelain.sh
@@ -122,6 +122,29 @@ test_expect_success 'bisect start without -- takes unknown arg as pathspec' '
 	grep bar ".git/BISECT_NAMES"
 '
 
+test_expect_success 'bisect reset: back in a branch checked out also elsewhere' '
+	echo "shared" > branch.expect &&
+	test_bisect_reset() {
+		git -C $1 bisect start &&
+		git -C $1 bisect good $HASH1 &&
+		git -C $1 bisect bad $HASH3 &&
+		git -C $1 bisect reset &&
+		git -C $1 branch --show-current > branch.output &&
+		cmp branch.expect branch.output
+	} &&
+	test_when_finished "
+		git worktree remove wt1 &&
+		git worktree remove wt2 &&
+		git branch -d shared
+	" &&
+	git worktree add wt1 -b shared &&
+	git worktree add wt2 -f shared &&
+	# we test in both worktrees to ensure that works
+	# as expected with "first" and "next" worktrees
+	test_bisect_reset wt1 &&
+	test_bisect_reset wt2
+'
+
 test_expect_success 'bisect reset: back in the main branch' '
 	git bisect reset &&
 	echo "* main" > branch.expect &&