Changes
extend to work correctly in namespaces with subpages disabled
{{#if: {{Is subpage namespace | {{#if:{{{1|}}}|{{NAMESPACE:{{{1}}}}}|{{NAMESPACE}}}} }} | {{#if: {{#titleparts:{{#if:{{{1|}}}|{{{1}}}|{{FULLPAGENAME}}}}|-1}} | {{#titleparts:{{#if:{{{1|}}}|{{{1}}}|{{FULLPAGENAME}}}}|-1}} | {{#if:{{{1|}}}|{{{1}}}|{{FULLPAGENAME}}}} }} | {{#if:{{{1|}}}|{{{1}}}|{{FULLPAGENAME}}}}}}<noinclude>
{{documentation}}
</noinclude>