diff --git a/docs/development/running-tests/fixtures.md b/docs/development/running-tests/fixtures.md
new file mode 100644
index 000000000..9ed4b97ee
--- /dev/null
+++ b/docs/development/running-tests/fixtures.md
@@ -0,0 +1,8 @@
+# Adding fixture data
+
+You can use this workflow for identifying and capturing fixture changes:
+- load existing fixture data by running `load-fixtures` at the studio command prompt
+- Take a complete snapshot of the database `dump-sql > .scratch/snapshot.before-changes.sql`
+- Create new records using the UI
+- Take a complete snapshot `dump-sql > .scratch/snapshot.after-changes.sql`
+- Open up the two .sql files in a visual diff viewer and manually transplant the added records over to their appropriate fixture files in the repo
\ No newline at end of file
diff --git a/php-classes/Emergence/Git/Source.php b/php-classes/Emergence/Git/Source.php
index 9ad0ca5e4..5ab39253e 100644
--- a/php-classes/Emergence/Git/Source.php
+++ b/php-classes/Emergence/Git/Source.php
@@ -182,11 +182,11 @@ public function getDeployKey()
     public function setDeployKey(KeyPair $keyPair)
     {
         $privateKeyPath = $this->getPrivateKeyPath();
-        file_put_contents($privateKeyPath, $keyPair->getPrivateKey().PHP_EOL);
+        file_put_contents($privateKeyPath, str_replace("\r\n", "\n", $keyPair->getPrivateKey()).PHP_EOL);
         chmod($privateKeyPath, 0600);
 
         $publicKeyPath = $this->getPublicKeyPath();
-        file_put_contents($publicKeyPath, $keyPair->getPublicKey().PHP_EOL);
+        file_put_contents($publicKeyPath, str_replace("\r\n", "\n", $keyPair->getPublicKey()).PHP_EOL);
         chmod($publicKeyPath, 0600);
 
         $this->deployKey = $keyPair;