Fixed issue where `Overwrite` parameter always evaluated to true.
Fixed issue where `Overwrite` parameter always evaluated to true.

red-gate/Library,alastairtree/Library,johannesvaltonen/Library,Parametric/OctopusDeployCommunityLibrary,johannesvaltonen/Library,kburdett/Library,red-gate/Library,timorzadir/Library,kburdett/Library,timhunt303/Library,rcarrillopadron/Library,cofactordigital/Library,timorzadir/Library,alastairtree/Library,Parametric/OctopusDeployCommunityLibrary,cofactordigital/Library,rcarrillopadron/Library,Parametric/OctopusDeployCommunityLibrary,timhunt303/Library,alastairtree/Library