 Fixed page blueprints and theme inheritance issue (#534)
 Fixed page blueprints and theme inheritance issue (#534)

Vivalldi/grav,sylvestrelucia/grav,userfrosting/learn,toovy/grav,notklaatu/grav,sylvestrelucia/grav,ccardinaux/grav-test,JamesPan/gravbox,shortsofia/testesitegrav.github.io,tomzx/blog.tomrochette.com,userfrosting/learn,dimayakovlev/grav,Vivalldi/grav,JamesPan/gravbox,notklaatu/grav,Sommerregen/grav,getgrav/grav,userfrosting/learn,dimayakovlev/grav,userfrosting/learn,stell/grav,sylvestrelucia/grav,tomzx/blog.tomrochette.com,joeyhenricks/a-broke-vegan,getgrav/grav,joeyhenricks/a-broke-vegan,toovy/grav,sylvestrelucia/grav,tomzx/blog.tomrochette.com,tomzx/blog.tomrochette.com,JamesPan/gravbox,gigago/grav,JamesPan/gravbox,webuxr/iamrs