OK, so you’ve made a cloned LXC snapshot container with:
lxc-clone -o template -n TEMPLATE_NEW_TEST -s -v LVM_VOL
And you like the changes, want to commit them to the original container? Here’s the solution
lvconvert –merge /dev/LVM_VOL/TEMPLATE_NEW_TEST
or, you just delete it with
Make sure to remove the container folder too.