From fc86247ce8a3b78a2d76dc29bf41d404c7ab8184 Mon Sep 17 00:00:00 2001
From: maliming <malimings@gmail.com>
Date: Thu, 16 Apr 2026 15:17:56 +0900
Subject: [PATCH 1/3] Use git ls-remote instead of git tag -l for tag existence
 check

---
 .github/scripts/update_dependency_changes.py                | 6 +++---
 .../workflows/nuget-packages-version-change-detector.yml    | 6 ++----
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/.github/scripts/update_dependency_changes.py b/.github/scripts/update_dependency_changes.py
index 02ab623ff8..060e945486 100644
--- a/.github/scripts/update_dependency_changes.py
+++ b/.github/scripts/update_dependency_changes.py
@@ -26,13 +26,13 @@ def normalize_version(version):
 
 
 def check_tag_exists(tag):
-    """Check if a git tag exists."""
+    """Check if a git tag exists on the remote."""
     result = subprocess.run(
-        ["git", "tag", "-l", tag],
+        ["git", "ls-remote", "--tags", "origin", tag],
         capture_output=True,
         text=True,
     )
-    return result.returncode == 0 and tag in result.stdout.strip().split("\n")
+    return result.returncode == 0 and result.stdout.strip() != ""
 
 
 def bump_patch_if_released(version, tag_exists_fn=None):
diff --git a/.github/workflows/nuget-packages-version-change-detector.yml b/.github/workflows/nuget-packages-version-change-detector.yml
index 4ed7fad8de..45dba3332b 100644
--- a/.github/workflows/nuget-packages-version-change-detector.yml
+++ b/.github/workflows/nuget-packages-version-change-detector.yml
@@ -44,10 +44,8 @@ jobs:
           ref: ${{ github.event.pull_request.head.ref }}
           fetch-depth: 1
 
-      - name: Fetch base branch and tags
-        run: |
-          git fetch origin ${{ github.event.pull_request.base.ref }}:refs/remotes/origin/${{ github.event.pull_request.base.ref }} --depth=1
-          git fetch --tags origin
+      - name: Fetch base branch
+        run: git fetch origin ${{ github.event.pull_request.base.ref }}:refs/remotes/origin/${{ github.event.pull_request.base.ref }} --depth=1
 
       - uses: actions/setup-python@v5
         with:

From d9672968d43918a1b825e30e348c873d0f392979 Mon Sep 17 00:00:00 2001
From: maliming <malimings@gmail.com>
Date: Thu, 16 Apr 2026 15:23:21 +0900
Subject: [PATCH 2/3] Use exact ref path and --exit-code for git ls-remote tag
 check

---
 .github/scripts/update_dependency_changes.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/scripts/update_dependency_changes.py b/.github/scripts/update_dependency_changes.py
index 060e945486..0f47d97d5f 100644
--- a/.github/scripts/update_dependency_changes.py
+++ b/.github/scripts/update_dependency_changes.py
@@ -28,11 +28,11 @@ def normalize_version(version):
 def check_tag_exists(tag):
     """Check if a git tag exists on the remote."""
     result = subprocess.run(
-        ["git", "ls-remote", "--tags", "origin", tag],
+        ["git", "ls-remote", "--exit-code", "--tags", "origin", f"refs/tags/{tag}"],
         capture_output=True,
         text=True,
     )
-    return result.returncode == 0 and result.stdout.strip() != ""
+    return result.returncode == 0
 
 
 def bump_patch_if_released(version, tag_exists_fn=None):

From 06e1d551d244c58d45b2f63304ff5542f497c3f0 Mon Sep 17 00:00:00 2001
From: maliming <malimings@gmail.com>
Date: Thu, 16 Apr 2026 15:27:33 +0900
Subject: [PATCH 3/3] Handle git ls-remote error codes explicitly

---
 .github/scripts/update_dependency_changes.py | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/.github/scripts/update_dependency_changes.py b/.github/scripts/update_dependency_changes.py
index 0f47d97d5f..9f39850084 100644
--- a/.github/scripts/update_dependency_changes.py
+++ b/.github/scripts/update_dependency_changes.py
@@ -32,7 +32,16 @@ def check_tag_exists(tag):
         capture_output=True,
         text=True,
     )
-    return result.returncode == 0
+    if result.returncode == 0:
+        return True
+    if result.returncode == 2:
+        return False
+
+    stderr = (result.stderr or "").strip()
+    raise RuntimeError(
+        f"Failed to check whether git tag '{tag}' exists on remote 'origin' "
+        f"(exit code {result.returncode}): {stderr or 'No error output provided.'}"
+    )
 
 
 def bump_patch_if_released(version, tag_exists_fn=None):