Fix circle (segmentio#395)

* fix fetch

* test url

* test url

* remove comment

* fix fetch remote

Author: briemcnally

.circleci/config.yml

@@ -49,12 +49,17 @@ jobs:
             mkdir -p /home/circleci/project
             cd /home/circleci/project
             git clone "$CIRCLE_REPOSITORY_URL" .
-            git fetch --force origin "${CIRCLE_BRANCH}/head:remotes/origin/${CIRCLE_BRANCH}"
+            if [ "CIRCLE_BRANCH" == "master" ]
+            then
+              git fetch --force origin "master:remotes/origin/master"
+            fi
 
             if [ -n "$CIRCLE_BRANCH" ]
             then
               git reset --hard "$CIRCLE_SHA1"
               git checkout -q -B "$CIRCLE_BRANCH"
+            else
+              git fetch --force origin "${CIRCLE_BRANCH}/head:remotes/origin/${CIRCLE_BRANCH}"
             fi
 
             git reset --hard "$CIRCLE_SHA1"