[simplescrollbar addon] Make sure bar position is clipped after update
[simplescrollbar addon] Make sure bar position is clipped after update

Closes #3891

SidPresse/CodeMirror,crazy4chrissi/CodeMirror,ashmind/CodeMirror,codio/CodeMirror,pabloferz/CodeMirror,MarcelGerber/CodeMirror,grzegorzmazur/CodeMirror,pabloferz/CodeMirror,notepadqq/CodeMirror,vincentwoo/CodeMirror,schanzer/CodeMirror,rrandom/CodeMirror,thomasjm/CodeMirror,Dominator008/CodeMirror,SidPresse/CodeMirror,crazy4chrissi/CodeMirror,nightwing/CodeMirror,alur/CodeMirror,nightwing/CodeMirror,mizchi/CodeMirror,codio/CodeMirror,hackmdio/CodeMirror,bfrohs/CodeMirror,alur/CodeMirror,xeronith/CodeMirror,thomasjm/CodeMirror,wingify/CodeMirror,ejgallego/CodeMirror,mtaran-google/CodeMirror,INTELOGIE/CodeMirror,jkaplon/CodeMirror,MarcelGerber/CodeMirror,xeronith/CodeMirror,notepadqq/CodeMirror,namin/CodeMirror,jayaprabhakar/CodeMirror,ejgallego/CodeMirror,codio/CodeMirror,mtaran-google/CodeMirror,InternetGuru/CodeMirror,namin/CodeMirror,kerabromsmu/CodeMirror,sourcelair/CodeMirror,kerabromsmu/CodeMirror,adobe/CodeMirror2,crazy4chrissi/CodeMirror,Dominator008/CodeMirror,SidPresse/CodeMirror,TDaglis/CodeMirror,Jisuanke/CodeMirror,grzegorzmazur/CodeMirror,Dominator008/CodeMirror,rrandom/CodeMirror,vincentwoo/CodeMirror,hackmdio/CodeMirror,TDaglis/CodeMirror,ashmind/CodeMirror,bfrohs/CodeMirror,INTELOGIE/CodeMirror,Jisuanke/CodeMirror,nightwing/CodeMirror,schanzer/CodeMirror,kerabromsmu/CodeMirror,mizchi/CodeMirror,ejgallego/CodeMirror,adobe/CodeMirror2,mtaran-google/CodeMirror,thomasjm/CodeMirror,INTELOGIE/CodeMirror,jkaplon/CodeMirror,sourcelair/CodeMirror,InternetGuru/CodeMirror,sourcelair/CodeMirror,hackmdio/CodeMirror,jkaplon/CodeMirror,namin/CodeMirror,dperetti/CodeMirror,rrandom/CodeMirror,dperetti/CodeMirror,dperetti/CodeMirror,TDaglis/CodeMirror,mizchi/CodeMirror,ficristo/CodeMirror,Jisuanke/CodeMirror,adobe/CodeMirror2,notepadqq/CodeMirror,bfrohs/CodeMirror,ficristo/CodeMirror,grzegorzmazur/CodeMirror,InternetGuru/CodeMirror,vincentwoo/CodeMirror,ashmind/CodeMirror,pabloferz/CodeMirror,schanzer/CodeMirror,alur/CodeMirror,wingify/CodeMirror,ficristo/CodeMirror,jayaprabhakar/CodeMirror,jayaprabhakar/CodeMirror,xeronith/CodeMirror,wingify/CodeMirror,MarcelGerber/CodeMirror