Fix exception on `git bz file`HEADmasterfishsoup

(Reconstructed from the original commit
http://git.fishsoup.net/cgit/git-bz/commit/?id=e17bbae7a2ce454d9f69c32fc40066995d44913d)

1 files changed, 1 insertions, 1 deletions

diff --git a/git-bz b/git-bz
index 8bd55f5..f0eca04 100755
--- a/git-bz
+++ b/git-bz
@@ -417,7 +417,7 @@ def get_config(tracker):
             add_config_from_string(CONFIG[host], cached_config)
         add_config_from_git(host, cached_config)
         if tracker != host:
-            cached_config.update(get_git_config(tracker))
+            add_config_from_git(tracker, cached_config)
 
     assert cached_config_tracker == tracker