No, that snippet is not strict-safe.
our allows you to refer to somebody's package global in unqualified manner, even when you leave the package. But this permission lasts only within lexical scope.
use strict;
package First;
our $foo = 42;
{
print $foo; # 42
package Second;
print $foo; # 42, refers to $First::foo
our $bar = 54;
{
package Third;
print $foo; # 42, refers to $First::foo
print $bar; # 54, refers to $Second::bar
}
}
print $Second::bar; # 54, fully qualified.
print $bar; # error: not strict-safe as the our is not in scop
+e.
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