fix: clear directory before generation of context
fix: clear directory before generation of context

fixes #927

abrahamvarricatt/pelican,janaurka/git-debug-presentiation,gymglish/pelican,treyhunner/pelican,ehashman/pelican,garbas/pelican,ehashman/pelican,eevee/pelican,joetboole/pelican,Rogdham/pelican,btnpushnmunky/pelican,Scheirle/pelican,Summonee/pelican,ehashman/pelican,jo-tham/pelican,janaurka/git-debug-presentiation,iurisilvio/pelican,goerz/pelican,ingwinlu/pelican,abrahamvarricatt/pelican,number5/pelican,florianjacob/pelican,zackw/pelican,koobs/pelican,zackw/pelican,koobs/pelican,goerz/pelican,simonjj/pelican,farseerfc/pelican,kennethlyn/pelican,treyhunner/pelican,lucasplus/pelican,Scheirle/pelican,btnpushnmunky/pelican,GiovanniMoretti/pelican,douglaskastle/pelican,levanhien8/pelican,deved69/pelican-1,51itclub/pelican,garbas/pelican,jimperio/pelican,joetboole/pelican,talha131/pelican,Polyconseil/pelican,sunzhongwei/pelican,karlcow/pelican,kennethlyn/pelican,kennethlyn/pelican,ingwinlu/pelican,deanishe/pelican,11craft/pelican,kernc/pelican,JeremyMorgan/pelican,kernc/pelican,zackw/pelican,deved69/pelican-1,catdog2/pelican,Rogdham/pelican,TC01/pelican,avaris/pelican,lazycoder-ru/pelican,alexras/pelican,ls2uper/pelican,iKevinY/pelican,alexras/pelican,jvehent/pelican,janaurka/git-debug-presentiation,eevee/pelican,number5/pelican,HyperGroups/pelican,TC01/pelican,Summonee/pelican,0xMF/pelican,Scheirle/pelican,JeremyMorgan/pelican,HyperGroups/pelican,51itclub/pelican,crmackay/pelican,douglaskastle/pelican,simonjj/pelican,abrahamvarricatt/pelican,florianjacob/pelican,lucasplus/pelican,deanishe/pelican,rbarraud/pelican,JeremyMorgan/pelican,catdog2/pelican,joetboole/pelican,jimperio/pelican,lucasplus/pelican,farseerfc/pelican,number5/pelican,gymglish/pelican,51itclub/pelican,iurisilvio/pelican,ls2uper/pelican,TC01/pelican,UdeskDeveloper/pelican,GiovanniMoretti/pelican,btnpushnmunky/pelican,jimperio/pelican,levanhien8/pelican,justinmayer/pelican,sunzhongwei/pelican,Rogdham/pelican,rbarraud/pelican,11craft/pelican,iurisilvio/pelican,lazycoder-ru/pelican,HyperGroups/pelican,sunzhongwei/pelican,jo-tham/pelican,simonjj/pelican,deved69/pelican-1,getpelican/pelican,Polyconseil/pelican,11craft/pelican,jvehent/pelican,catdog2/pelican,UdeskDeveloper/pelican,treyhunner/pelican,getpelican/pelican,jvehent/pelican,karlcow/pelican,kernc/pelican,ls2uper/pelican,crmackay/pelican,lazycoder-ru/pelican,GiovanniMoretti/pelican,levanhien8/pelican,avaris/pelican,sunzhongwei/pelican,douglaskastle/pelican,alexras/pelican,karlcow/pelican,florianjacob/pelican,talha131/pelican,gymglish/pelican,crmackay/pelican,goerz/pelican,UdeskDeveloper/pelican,koobs/pelican,arty-name/pelican,deanishe/pelican,rbarraud/pelican,Summonee/pelican,garbas/pelican,eevee/pelican,iKevinY/pelican,ionelmc/pelican