Merge branch 'subtree'

diff --combined src/be/nikiroo/fanfix/library/RemoteLibraryServer.java
index 4ee3f74d221c3497978cc57d70fc935fd466579f,ef17e28b25b134d60a266ac1b31b7fd0b2c5da1d..ef17e28b25b134d60a266ac1b31b7fd0b2c5da1d
--- 1/src/be/nikiroo/fanfix/library/RemoteLibraryServer.java
--- 2/library/RemoteLibraryServer.java
+++ b/src/be/nikiroo/fanfix/library/RemoteLibraryServer.java
@@@ -512,12 -512,14 +512,14 @@@ public class RemoteLibraryServer extend
        }
        
        private MetaData removeCover(MetaData meta) {
-               MetaData light;
-               if (meta.getCover() == null) {
-                       light = meta;
-               } else {
-                       light = meta.clone();
-                       light.setCover(null);
+               MetaData light = null;
+               if (meta != null) {
+                       if (meta.getCover() == null) {
+                               light = meta;
+                       } else {
+                               light = meta.clone();
+                               light.setCover(null);
+                       }
                }
                
                return light;