From 27f1613cd3aba7e7141d27babc9dd728b5ceab83 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Fri, 25 May 2018 18:02:12 +0200
Subject: [PATCH] Reset `repo_var` so it actually is re-computed.

---
 Library/Homebrew/compat/tap.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Library/Homebrew/compat/tap.rb b/Library/Homebrew/compat/tap.rb
index 7d2b378577..1fd53058a5 100644
--- a/Library/Homebrew/compat/tap.rb
+++ b/Library/Homebrew/compat/tap.rb
@@ -17,6 +17,8 @@ class Tap
 
       super(new_user, new_repo)
 
+      @repo_var = nil
+
       new_initial_revision_var = "HOMEBREW_UPDATE_BEFORE#{repo_var}"
       new_current_revision_var = "HOMEBREW_UPDATE_AFTER#{repo_var}"