Add regression test for #4078
Add regression test for #4078

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