Fixed|libdeng2: Improvements to the Observers template
It is not a good idea to release the _members set at any time; itmight be in use in loop iteration when the last member is removed.Now _members is deleted only in the Loop destructor.
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Fixed|libdeng2: Improvements to the Observers template
It is not a good idea to release the _members set at any time; it
might be in use in loop iteration when the last member is removed.
Now _members is deleted only in the Loop destructor.