Revert "disable caching of share block"
Revert "disable caching of share block"

This reverts commit d9ff2304482afe7f72a790059616c0af86a108cc.

jaromirdalecky/concrete5,hissy/concrete5,haeflimi/concrete5,concrete5/concrete5,jaromirdalecky/concrete5,biplobice/concrete5,MrKarlDilkington/concrete5,haeflimi/concrete5,concrete5/concrete5,mlocati/concrete5,jaromirdalecky/concrete5,biplobice/concrete5,hissy/concrete5,concrete5/concrete5,mlocati/concrete5,haeflimi/concrete5,mlocati/concrete5,concrete5/concrete5,hissy/concrete5,MrKarlDilkington/concrete5,MrKarlDilkington/concrete5,deek87/concrete5,biplobice/concrete5,biplobice/concrete5,haeflimi/concrete5,jaromirdalecky/concrete5,deek87/concrete5,hissy/concrete5,deek87/concrete5,mlocati/concrete5,deek87/concrete5