Revert "don't insert the same notice twice into an inbox"
Revert "don't insert the same notice twice into an inbox"

This reverts commit 650074c648d98f81674c6e2b0ebf052c473ada6e.

znarf/statusnet-ladistribution,shashi/StatusNet,studio666/gnu-social,csarven/statusnet,eXcomm/gnu-social,furtherfield/gnu-social,chimo/social,charlycoste/StatusNet,brion/StatusNet,gnusocial/mainline,xebia/statusnet-oauth2,faulteh/gnu-social,eXcomm/gnu-social,Piratas/tortuga,studio666/gnu-social,Piratas/tortuga,faulteh/gnu-social,studio666/gnu-social,UngPirat/freesocial,gnusocial/mainline,d3vgru/StatusNet,sikevux/bsk-social,UngPirat/freesocial,faulteh/gnu-social,eXcomm/gnu-social,zcopley/StatusNet,bankonme/gnu-social,znarf/statusnet-ladistribution,foocorp/gnu-social,zh/statusnet,zcopley/zcopleys-statusnet-clone,d3vgru/StatusNet,sikevux/bsk-social,bankonme/gnu-social,Piratas/tortuga,chimo/social,eXcomm/gnu-social,csarven/statusnet,studio666/gnu-social,charlycoste/StatusNet,sikevux/bsk-social,zh/statusnet,foocorp/gnu-social,charnimda/lgbtpzn-social,brion/StatusNet,zh/statusnet,bankonme/gnu-social,d3vgru/StatusNet,foocorp/gnu-social,furtherfield/gnu-social,charnimda/lgbtpzn-social,charlycoste/StatusNet,xebia/statusnet-oauth2,shashi/StatusNet,minmb/statusnet,bankonme/gnu-social,UngPirat/freesocial,xebia/statusnet-oauth2,zcopley/zcopleys-statusnet-clone,zcopley/StatusNet,charnimda/lgbtpzn-social,faulteh/gnu-social,minmb/statusnet,sikevux/bsk-social,Piratas/tortuga,gnusocial/mainline,zcopley/StatusNet,minmb/statusnet,zcopley/zcopleys-statusnet-clone,shashi/StatusNet,csarven/statusnet,gnusocial/mainline,furtherfield/gnu-social,znarf/statusnet-ladistribution,brion/StatusNet,furtherfield/gnu-social,chimo/social,csarven/statusnet