From 4c2505be5f8d566777232f717d6454887efa032b Mon Sep 17 00:00:00 2001
From: titagass <269501527+titagass@users.noreply.github.com>
Date: Fri, 3 Apr 2026 06:29:56 +0000
Subject: [PATCH 1/4] fix(filters): do not append fill_with when items divide
 evenly across slices

---
 src/jinja2/filters.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/jinja2/filters.py b/src/jinja2/filters.py
index c46e20c10..2b62cc743 100644
--- a/src/jinja2/filters.py
+++ b/src/jinja2/filters.py
@@ -1089,7 +1089,7 @@ def sync_do_slice(
         end = offset + (slice_number + 1) * items_per_slice
         tmp = seq[start:end]
 
-        if fill_with is not None and slice_number >= slices_with_extra:
+        if fill_with is not None and slices_with_extra > 0 and slice_number >= slices_with_extra:
             tmp.append(fill_with)
 
         yield tmp

From 9e2e474aac6e86649654c98790e10c216b0f8774 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci-lite[bot]"
 <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Date: Fri, 3 Apr 2026 06:32:58 +0000
Subject: [PATCH 2/4] [pre-commit.ci lite] apply automatic fixes

---
 src/jinja2/filters.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/jinja2/filters.py b/src/jinja2/filters.py
index 2b62cc743..27e5f0589 100644
--- a/src/jinja2/filters.py
+++ b/src/jinja2/filters.py
@@ -1089,7 +1089,11 @@ def sync_do_slice(
         end = offset + (slice_number + 1) * items_per_slice
         tmp = seq[start:end]
 
-        if fill_with is not None and slices_with_extra > 0 and slice_number >= slices_with_extra:
+        if (
+            fill_with is not None
+            and slices_with_extra > 0
+            and slice_number >= slices_with_extra
+        ):
             tmp.append(fill_with)
 
         yield tmp

From 38df06c8a40f7dde4b855f8c1ee05eafb2e72309 Mon Sep 17 00:00:00 2001
From: titagass <269501527+titagass@users.noreply.github.com>
Date: Fri, 3 Apr 2026 06:51:11 +0000
Subject: [PATCH 3/4] test(filters): add regression tests for slice filter
 fill_with behavior

---
 tests/test_filters.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/tests/test_filters.py b/tests/test_filters.py
index 4601469a6..1663124b2 100644
--- a/tests/test_filters.py
+++ b/tests/test_filters.py
@@ -881,3 +881,18 @@ def test_filter_undefined_in_condexpr(self, env):
 
         with pytest.raises(TemplateRuntimeError, match="No filter named 'f'"):
             t2.render(x=42)
+
+    def test_slice_no_fill_with_even_division(self, env):
+        """fill_with must not be appended when items divide evenly."""
+        t = env.from_string("{{ items|slice(4, 'X')|list }}")
+        assert t.render(items=[1, 2, 3, 4]) == "[[1], [2], [3], [4]]"
+        assert t.render(items=list(range(9))) == (
+            "[[0, 1, 2], [3, 4, 5], [6, 7, 8]]"
+        )
+
+    def test_slice_fill_with_remainder(self, env):
+        """fill_with should only be appended to shorter slices."""
+        t = env.from_string("{{ items|slice(3, 'X')|list }}")
+        assert t.render(items=list(range(10))) == (
+            "[[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 'X']]"
+        )

From 84cd3a7cd5182ec88355dc5e1410a909e2dcaa4d Mon Sep 17 00:00:00 2001
From: "pre-commit-ci-lite[bot]"
 <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Date: Fri, 3 Apr 2026 06:52:26 +0000
Subject: [PATCH 4/4] [pre-commit.ci lite] apply automatic fixes

---
 tests/test_filters.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tests/test_filters.py b/tests/test_filters.py
index 1663124b2..afab3b655 100644
--- a/tests/test_filters.py
+++ b/tests/test_filters.py
@@ -886,9 +886,7 @@ def test_slice_no_fill_with_even_division(self, env):
         """fill_with must not be appended when items divide evenly."""
         t = env.from_string("{{ items|slice(4, 'X')|list }}")
         assert t.render(items=[1, 2, 3, 4]) == "[[1], [2], [3], [4]]"
-        assert t.render(items=list(range(9))) == (
-            "[[0, 1, 2], [3, 4, 5], [6, 7, 8]]"
-        )
+        assert t.render(items=list(range(9))) == ("[[0, 1, 2], [3, 4, 5], [6, 7, 8]]")
 
     def test_slice_fill_with_remainder(self, env):
         """fill_with should only be appended to shorter slices."""