From 15600fe3303abee0724665356de9e0cedf06517e Mon Sep 17 00:00:00 2001
From: yakov116 <16872793+yakov116@users.noreply.github.com>
Date: Sun, 12 Apr 2020 18:45:28 -0400
Subject: [PATCH] Disable `update-pr-from-base-branch` when action is
 impossible (#2994)

---
 source/features/update-pr-from-base-branch.tsx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source/features/update-pr-from-base-branch.tsx b/source/features/update-pr-from-base-branch.tsx
index 8d1cbf64da2..dbeb713bc1d 100644
--- a/source/features/update-pr-from-base-branch.tsx
+++ b/source/features/update-pr-from-base-branch.tsx
@@ -69,6 +69,10 @@ async function addButton(): Promise<void> {
 
 	const {base, head} = getBranches();
 
+	if (head === 'unknown repository') {
+		return;
+	}
+
 	// Draft PRs already have this info on the page
 	const [outOfDateContainer] = select.all('.completeness-indicator-problem + .status-heading')
 		.filter(title => (title.textContent!).includes('out-of-date'));