diff --git a/resources/sql/autopatches/20170915.ref.01.migrate.php b/resources/sql/autopatches/20170915.ref.01.migrate.php
new file mode 100644
index 0000000000..21102fa4ab
--- /dev/null
+++ b/resources/sql/autopatches/20170915.ref.01.migrate.php
@@ -0,0 +1,71 @@
+<?php
+
+$table = new PhabricatorRepositoryRefCursor();
+$conn = $table->establishConnection('w');
+
+$map = array();
+foreach (new LiskMigrationIterator($table) as $ref) {
+  $repository_phid = $ref->getRepositoryPHID();
+  $ref_type = $ref->getRefType();
+  $ref_hash = $ref->getRefNameHash();
+
+  $ref_key = "{$repository_phid}/{$ref_type}/{$ref_hash}";
+
+  if (!isset($map[$ref_key])) {
+    $map[$ref_key] = array(
+      'id' => $ref->getID(),
+      'type' => $ref_type,
+      'hash' => $ref_hash,
+      'repositoryPHID' => $repository_phid,
+      'positions' => array(),
+    );
+  }
+
+  // NOTE: When this migration runs, the table will have "commitIdentifier" and
+  // "isClosed" fields. Later, it won't. Since they'll be removed, we can't
+  // rely on being able to access them via the object. Instead, run a separate
+  // raw query to read them.
+
+  $row = queryfx_one(
+    $conn,
+    'SELECT commitIdentifier, isClosed FROM %T WHERE id = %d',
+    $ref->getTableName(),
+    $ref->getID());
+
+  $map[$ref_key]['positions'][] = array(
+    'identifier' => $row['commitIdentifier'],
+    'isClosed' => (int)$row['isClosed'],
+  );
+}
+
+// Now, write all the position rows.
+$position_table = new PhabricatorRepositoryRefPosition();
+foreach ($map as $ref_key => $spec) {
+  $id = $spec['id'];
+  foreach ($spec['positions'] as $position) {
+    queryfx(
+      $conn,
+      'INSERT IGNORE INTO %T (cursorID, commitIdentifier, isClosed)
+        VALUES (%d, %s, %d)',
+      $position_table->getTableName(),
+      $id,
+      $position['identifier'],
+      $position['isClosed']);
+  }
+}
+
+// Finally, delete all the redundant RefCursor rows (rows with the same name)
+// so we can add proper unique keys in the next migration.
+foreach ($map as $ref_key => $spec) {
+  queryfx(
+    $conn,
+    'DELETE FROM %T WHERE refType = %s
+      AND refNameHash = %s
+      AND repositoryPHID = %s
+      AND id != %d',
+    $table->getTableName(),
+    $spec['type'],
+    $spec['hash'],
+    $spec['repositoryPHID'],
+    $spec['id']);
+}