when storing back the data field 'encrypted' it is necessary to cast the boolean to an integer to make pg happy

lib/files/cache/scanner.php

@@ -121,6 +121,8 @@ class Scanner extends BasicEmitter {
 									}
 									$parentCacheData = $this->cache->get($parent);
 									$parentCacheData['etag'] = $this->storage->getETag($parent);
+									// the boolean to int conversion is necessary to make pg happy
+									$parentCacheData['encrypted'] = $parentCacheData['encrypted'] ? 1 : 0;
 									$this->cache->put($parent, $parentCacheData);
 								}
 							}

tests/lib/files/cache/scanner.php

@@ -195,6 +195,7 @@ class Scanner extends \PHPUnit_Framework_TestCase {
 		$data1 = $this->cache->get('folder');
 		$data2 = $this->cache->get('');
 		$data0['etag'] = '';
+		$data0['encrypted'] = $data0['encrypted'] ? 1: 0;
 		$this->cache->put('folder/bar.txt', $data0);
 
 		// rescan