X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Fmatita%2FmatitaSync.ml;h=9a44742b7c5dacebe62d2edd170ccc9020616e61;hb=9415c1b38c7927adab499ddd75f9a19d650a9acd;hp=fbcac945ae0a50e9d188e5ada89e2210003c8c65;hpb=3b5b254f2faa600a14a837e95f94f953dc9959c7;p=helm.git

diff --git a/helm/matita/matitaSync.ml b/helm/matita/matitaSync.ml
index fbcac945a..9a44742b7 100644
--- a/helm/matita/matitaSync.ml
+++ b/helm/matita/matitaSync.ml
@@ -170,21 +170,25 @@ let delta_status status1 status2 =
   in
   diff status1.objects status2.objects
 
+let remove_coercion uri = 
+  CoercDb.remove_coercion (fun (_,_,u) -> UriManager.eq u uri)
+  
 let time_travel ~present ~past =
   let list_of_objs_to_remove = List.rev (delta_status past present) in
     (* List.rev is just for the debugging code, which otherwise may list both
     * something.ind and something.ind#xpointer ... (ask Enrico :-) *)
   let debug_list = ref [] in
-  List.iter (fun (x,p) -> 
-    remove_object_from_disk x p;
+  List.iter (fun (uri,p) -> 
+    remove_object_from_disk uri p;
+    remove_coercion uri;
     (try 
-      CicEnvironment.remove_obj x
+      CicEnvironment.remove_obj uri
     with CicEnvironment.Object_not_found _ -> 
       MatitaLog.debug
         (sprintf "time_travel removes from cache %s that is not in" 
-          (UriManager.string_of_uri x)));
-    let l = MatitaDb.remove_uri x in
-    debug_list := UriManager.string_of_uri x :: !debug_list @ l) 
+          (UriManager.string_of_uri uri)));
+    let l = MatitaDb.remove_uri uri in
+    debug_list := UriManager.string_of_uri uri :: !debug_list @ l) 
   list_of_objs_to_remove;
   
   (* this is debug code