From 706562f80d9b01c7bdc419e3b26d97ff84ba0134 Mon Sep 17 00:00:00 2001
From: Rhys Arkins <rhys@arkins.net>
Date: Thu, 5 Mar 2020 11:55:05 +0100
Subject: [PATCH] fix(lookup): check currentValue before isValid

---
 lib/workers/repository/process/lookup/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/workers/repository/process/lookup/index.ts b/lib/workers/repository/process/lookup/index.ts
index 4c874fd763..db625850ac 100644
--- a/lib/workers/repository/process/lookup/index.ts
+++ b/lib/workers/repository/process/lookup/index.ts
@@ -137,7 +137,7 @@ export async function lookupUpdates(
   const version = allVersioning.get(config.versioning);
   const res: UpdateResult = { updates: [], warnings: [] } as any;
 
-  const isValid = version.isValid(currentValue);
+  const isValid = currentValue && version.isValid(currentValue);
   if (!isValid) res.skipReason = 'invalid-value';
 
   if (isValid) {
-- 
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