force_EA_mod_times=true Not Working

System

force_EA_mod_times=true This attribute in iw.cfg enables us to change the content modification time stamp if extended attributes (any metadata information) are changed but this is not working 6.7.1 is there any other workaround for working the same.

Question is :
is there any suitable workaround for changing content modifcation timestamp after changing Ext attributes kindly help in this regard.

Ugandhar