use the right user_id in the url of a submission preview
use the right user_id in the url of a submission preview

worked before, but now attachments dont have a user_id

Change-Id: I5799f62331f9ebd696639a811b57d3b574de37f5
Reviewed-on: https://gerrit.instructure.com/2586
Tested-by: Hudson <dfb64870173313a9a7b56f814c8e3b33e268497a@instructure.com>
Reviewed-by: Bracken Mosbacker <48b846001bca4166dc3fb7711563afc17525921e@instructure.com>

arrivu/hoodemo,em2/canvas-lms,ottenhoff/canvas-lms,venturehive/canvas-lms,usmschuck/canvas,snehakachroo1/LSI_replica,arrivu/hiring-site,HotChalk/canvas-lms,djbender/canvas-lms,landonwilkins/canvas-lms,merichar/canvas-lms,leftplusrightllc/canvas-lms,arrivu/hoodemo,nditech/red-innovadores-lms,rup/Tarrax,kyroskoh/canvas-lms,sdeleon28/canvas-lms,Rvor/canvas-lms,Jyaasa/canvas-lms,matematikk-mooc/canvas-lms,leftplusrightllc/canvas-lms,greyhwndz/canvas-lms,Unow/canvas-lms,djbender/canvas-lms,tgroshon/canvas-lms,fronteerio/canvas-lms,fronteerio/canvas-lms,sdeleon28/canvas-lms,arrivu/qibla-ecampus,gbleydon/canvas-lms,djbender/canvas-lms,parbros/red-innovadores-lms,usmschuck/canvas,ankithbti/canvas_lms,dgynn/canvas-lms,merichar/canvas-lms,Rvor/canvas-lms,ottenhoff/canvas-lms,juoni/canvas-lms,antoniuslin/canvas-lms,SwinburneOnline/canvas-lms,sdeleon28/canvas-lms,Unow/ins,antoniuslin/canvas-lms,djbender/canvas-lms,Rvor/canvas-lms,narigone/canvas,eCNAP/CANVAS,efrj/canvas-lms,tgroshon/canvas-lms,shidao-fm/canvas-lms,snehakachroo1/LSI_replica,arrivu/hiring-site,whalejasmine/canvas-lms,juoni/canvas-lms,HotChalk/canvas-lms,SwinburneOnline/canvas-lms,wrdsb/canvas-lms,faraazkhan/canvas,icelab/canvas,whalejasmine/canvas-lms,va7map/canvas-lms,parbros/red-innovadores-lms,instructure/canvas-lms,jay3126/canvas-lms,samuels410/greatlakes-lms,snehakachroo1/LSI_replica,narigone/canvas,Jyaasa/canvas-lms,tgroshon/canvas-lms,gbleydon/canvas-lms,rup/Tarrax,samuels410/greatlakes-lms,arrivu/jigsaw-lms,samuels410/greatlakes-lms,eCNAP/CANVAS,redconfetti/canvas-lms,faraazkhan/canvas,sli7246/canvas_branch,antoniuslin/canvas-lms,kyroskoh/canvas-lms,AndranikMarkosyan/lms,narigone/canvas,sli7246/canvas_branch,efrj/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,nditech/red-innovadores-lms,HotChalk/canvas-lms,ottenhoff/canvas-lms,grahamb/canvas-lms,kyroskoh/canvas-lms,sdeleon28/canvas-lms,antoniuslin/canvas-lms,sfu/canvas-lms,ShreniiNepal/shrenii_lmp,instructure/canvas-lms,snehakachroo1/LSI_replica,ShreniiNepal/shrenii_lmp,utkarshx/canvas-lms,instructure/canvas-lms,jay3126/canvas-lms,leftplusrightllc/canvas-lms,greyhwndz/canvas-lms,tgroshon/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,roxolan/canvas-lms,skmezanul/canvas-lms,wimemx/Canvas,grahamb/canvas-lms,arrivu/qibla-ecampus,icelab/canvas,matematikk-mooc/canvas-lms,utkarshx/canvas-lms,rup/Tarrax,wrdsb/canvas-lms,HotChalk/canvas-lms,wrdsb/canvas-lms,skmezanul/canvas-lms,shidao-fm/canvas-lms,AndranikMarkosyan/lms,instructure/canvas-lms,loganrun/pincan,landonwilkins/canvas-lms,em2/canvas-lms,utkarshx/canvas-lms,em2/canvas-lms,eCNAP/CANVAS,SwinburneOnline/canvas-lms,merichar/canvas-lms,roxolan/canvas-lms,wrdsb/canvas-lms,ankithbti/canvas_lms,arrivu/qibla-ecampus,grahamb/canvas-lms,roxolan/canvas-lms,wye0220/shindig-canvas,landonwilkins/canvas-lms,loganrun/pincan,matematikk-mooc/canvas-lms,arrivu/arrivu-lms,loganrun/pincan,shidao-fm/canvas-lms,AndranikMarkosyan/lms,samuels410/greatlakes-lms,jay3126/canvas-lms,juoni/canvas-lms,redconfetti/canvas-lms,venturehive/canvas-lms,whalejasmine/canvas-lms,greyhwndz/canvas-lms,venturehive/canvas-lms,kyroskoh/canvas-lms,va7map/canvas-lms,instructure/canvas-lms,greyhwndz/canvas-lms,AndranikMarkosyan/lms,landonwilkins/canvas-lms,redconfetti/canvas-lms,Jyaasa/canvas-lms,wye0220/shindig-canvas,Unow/ins,eCNAP/CANVAS,leftplusrightllc/canvas-lms,dgynn/canvas-lms,dgynn/canvas-lms,arrivu/jigsaw-lms,arrivu/hiring-site,shidao-fm/canvas-lms,dgynn/canvas-lms,jay3126/canvas-lms,grahamb/canvas-lms,Unow/canvas-lms,arrivu/arrivu-lms,instructure/canvas-lms,nditech/red-innovadores-lms,wimemx/Canvas,redconfetti/canvas-lms,gbleydon/canvas-lms,usmschuck/canvas,sfu/canvas-lms,usmschuck/canvas,utkarshx/canvas-lms,sli7246/canvas_branch,arrivu/hoodemo,sfu/canvas-lms,arrivu/jigsaw-lms,nditech/red-innovadores-lms,arrivu/arrivu-lms,juoni/canvas-lms,ShreniiNepal/shrenii_lmp,roxolan/canvas-lms,fronteerio/canvas-lms,instructure/canvas-lms,Unow/ins,faraazkhan/canvas,va7map/canvas-lms,skmezanul/canvas-lms,ankithbti/canvas_lms,parbros/red-innovadores-lms,whalejasmine/canvas-lms,ShreniiNepal/shrenii_lmp,fronteerio/canvas-lms,icelab/canvas,efrj/canvas-lms,wye0220/shindig-canvas,narigone/canvas,grahamb/canvas-lms,skmezanul/canvas-lms,efrj/canvas-lms,sfu/canvas-lms,Jyaasa/canvas-lms,va7map/canvas-lms,SwinburneOnline/canvas-lms,wimemx/Canvas,matematikk-mooc/canvas-lms,Rvor/canvas-lms,Unow/canvas-lms