xdg_app_installation_list_remote_refs_sync: Don't crash on weird refs

lib/xdg-app-installation.c

@@ -1052,9 +1052,12 @@ xdg_app_installation_list_remote_refs_sync (XdgAppInstallation *self,
     {
       const char *refspec = key;
       const char *checksum = value;
+      XdgAppRemoteRef *ref;
 
-      g_ptr_array_add (refs,
-                       xdg_app_remote_ref_new (refspec, checksum, remote_name));
+      ref = xdg_app_remote_ref_new (refspec, checksum, remote_name);
+
+      if (ref)
+        g_ptr_array_add (refs, ref);
     }
 
   return g_steal_pointer (&refs);

lib/xdg-app-remote-ref.c

@@ -137,7 +137,9 @@ xdg_app_remote_ref_new (const char *full_ref,
   g_auto(GStrv) parts = NULL;
   XdgAppRemoteRef *ref;
 
-  parts = g_strsplit (full_ref, "/", -1);
+  parts = xdg_app_decompose_ref (full_ref, NULL);
+  if (parts == NULL)
+    return NULL;
 
   if (strcmp (parts[0], "app") != 0)
     kind = XDG_APP_REF_KIND_RUNTIME;