Erase verf key left from creation from ientries on every modification

src/nfs_kv.cpp

@@ -283,6 +283,7 @@ static void touch_inode(nfs_proxy_t *proxy, inode_t ino, bool allow_cache)
         {
             auto ientry = attrs.object_items();
             ientry["mtime"] = nfstime_now_str();
+            ientry.erase("verf");
             // FIXME: Use "update" query
             bool *found = new bool;
             *found = true;

src/nfs_kv_rename.cpp

@@ -238,6 +238,7 @@ resume_7:
             {
                 auto copy = st->new_ientry.object_items();
                 copy["nlink"] = st->new_ientry["nlink"].uint64_value()-1;
+                copy.erase("verf");
                 st->self->parent->db->set(kv_inode_key(st->new_direntry["ino"].uint64_value()), json11::Json(copy).dump(), [st](int res)
                 {
                     st->res = res;
@@ -324,6 +325,7 @@ resume_11:
         {
             auto ientry_new = st->old_ientry.object_items();
             ientry_new["parent_ino"] = st->new_dir_ino;
+            ientry_new.erase("verf");
             st->self->parent->db->set(kv_inode_key(st->old_direntry["ino"].uint64_value()), json11::Json(ientry_new).dump(), [st](int res)
             {
                 st->res = res;

src/nfs_kv_setattr.cpp

@@ -71,6 +71,7 @@ resume_1:
         }
         st->new_attrs[kv.first] = kv.second;
     }
+    st->new_attrs.erase("verf");
     st->self->parent->db->set(kv_inode_key(st->ino), json11::Json(st->new_attrs).dump(), [st](int res)
     {
         st->res = res;

src/nfs_kv_write.cpp

@@ -546,6 +546,7 @@ static std::string new_normal_ientry(nfs_kv_write_state *st)
     ni.erase("shared_ver");
     ni["size"] = st->ext->cur_extend;
     ni["mtime"] = nfstime_now_str();
+    ni.erase("verf");
     return json11::Json(ni).dump();
 }
 
@@ -559,6 +560,7 @@ static std::string new_moved_ientry(nfs_kv_write_state *st)
     ni.erase("shared_ver");
     ni["size"] = st->new_size;
     ni["mtime"] = nfstime_now_str();
+    ni.erase("verf");
     return json11::Json(ni).dump();
 }
 
@@ -569,6 +571,7 @@ static std::string new_shared_ientry(nfs_kv_write_state *st)
     ni["size"] = st->new_size;
     ni["mtime"] = nfstime_now_str();
     ni["shared_ver"] = ni["shared_ver"].uint64_value()+1;
+    ni.erase("verf");
     return json11::Json(ni).dump();
 }
 
@@ -581,6 +584,7 @@ static std::string new_unshared_ientry(nfs_kv_write_state *st)
     ni.erase("shared_alloc");
     ni.erase("shared_ver");
     ni["mtime"] = nfstime_now_str();
+    ni.erase("verf");
     return json11::Json(ni).dump();
 }