Cloud Map tags are not being removed properly #71
Description
While making tests today I realized that Cloud Map treats tags as incremental, so if an object has tags a=1 and you want to update them as a=1;b=2 it will work fine. But if you want to update them as b=3; then you will first have to explicitly call a delete operation for a=1, as that will not be removed with an update only.
This is not really urgent and is being fixed in the new API but will be fixed in the operator as well if request is there as this will inevitably mean implementing a diff algorithm, which -- as of current state of code -- could mean having to remove everything and re-adding everything again.