Can you elaborate or provide a reference? It's still unclear to me why My::Run() doesn't get redefined here: 
require My;
print "a: "; My::Run(); # a: Running
undef &My::Run;
require My;
print "b: "; My::Run(); # Undefined subroutine &My::Run called at ...

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In reply to Re^2: Refresh a Module by Danny
in thread Refresh a Module by Timka

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