From a8e5141f2ac19be2b104ed23fe1f1bb3a5869ba8 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Sat, 4 Dec 2021 21:19:04 -0800
Subject: [PATCH] [ci skip] Fix double actions on PRs from main Paper repo

---
 .github/workflows/build.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 51bf4958a..639dcbe4a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,6 +10,8 @@ on: [push, pull_request]
 
 jobs:
     build:
+        # Only run on PRs if the source branch is on someone else's repo
+        if: ${{ github.event_name != 'pull_request' || github.repository != github.event.pull_request.head.repo.full_name }}
         runs-on: ubuntu-latest
         strategy:
             matrix: