Old cached values in node Edit forms even after updating node ?

When I update a node the revision show changes in values when we see diff but after updating node when I edit node again in node edit from it shows old value ie: cached value.

When I flush all cache then the updated value start appearing in node edit form.

In site no page cache is enabled, no block cache is enabled. But we are using memcache

This does not happens always but starts happening when cache not cleared for few hours but after clearing cache it starts working.

Please suggest what kind of cache is effecting values while editing node titles.

I am using modules as well Title and entity_translation

In my views there is no cache and I am using template file for views nid in which I fetch titles like below which also shows cached version :

$link = node_load($nid);
$link->title_field['en'][0]['value']  // English value title
$link->title_field['fr'][0]['value']  // French value of title
Should I try like this to get rid of cache:

$link = node_load($nid,null,true); // setting true
Please suggest, I have been trying and searching from long time but not able to find solution. It seems like problems with memcache.

Minimum cache lifetime = none

EDIT: seems kind of some similar problem Need to flush cache after node translation : http://drupal.stackexchange.com/questions/37345/need-to-flush-cache-afte...

I have also gone thorugh https://www.drupal.org/node/1262512 but it says already fixed. But I am facing this problem many times like 5 out of 10 times when edit/update title .

please suggest !

Thanks!