Code review comment for lp:~edb/quam-plures/navbar_workflow_fix

if( $Blog ) { die() }
produces the same exact results as
if( ! empty( $Blog ) { die() }

In both cases it doesn't die until a blog has been selected or identified ... even if it seems to be blog-0 in the URL. For example when first hitting the Items or Blog settings tab. The URL in those cases says blog 0 but it actually goes to the first blog or blog 1.

So why would the latter be more correct than the former?