From 7edb7c0ffc26ee056c6f03782244f205048d3293 Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <richard@matrix.org>
Date: Fri, 11 Feb 2022 14:13:44 +0000
Subject: [PATCH] Prepare for rename of default complement branch

use `HEAD` rather than hardcoding `master`
---
 .github/workflows/tests.yml | 6 +++---
 changelog.d/11971.misc      | 1 +
 2 files changed, 4 insertions(+), 3 deletions(-)
 create mode 100644 changelog.d/11971.misc

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c395f3e1c2fb..75ac1304bfbc 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -345,7 +345,7 @@ jobs:
           path: synapse
 
       # Attempt to check out the same branch of Complement as the PR. If it
-      # doesn't exist, fallback to master.
+      # doesn't exist, fallback to HEAD.
       - name: Checkout complement
         shell: bash
         run: |
@@ -358,8 +358,8 @@ jobs:
           #    for pull requests, otherwise GITHUB_REF).
           # 2. Attempt to use the base branch, e.g. when merging into release-vX.Y
           #    (GITHUB_BASE_REF for pull requests).
-          # 3. Use the default complement branch ("master").
-          for BRANCH_NAME in "$GITHUB_HEAD_REF" "$GITHUB_BASE_REF" "${GITHUB_REF#refs/heads/}" "master"; do
+          # 3. Use the default complement branch ("HEAD").
+          for BRANCH_NAME in "$GITHUB_HEAD_REF" "$GITHUB_BASE_REF" "${GITHUB_REF#refs/heads/}" "HEAD"; do
             # Skip empty branch names and merge commits.
             if [[ -z "$BRANCH_NAME" || $BRANCH_NAME =~ ^refs/pull/.* ]]; then
               continue
diff --git a/changelog.d/11971.misc b/changelog.d/11971.misc
new file mode 100644
index 000000000000..4e5bd8a393e1
--- /dev/null
+++ b/changelog.d/11971.misc
@@ -0,0 +1 @@
+Prepare for rename of default complement branch.