Reset the left and right border on list items for flush list groups
Reset the left and right border on list items for flush list groups

Avoid the resetting of the already set values in #20397. Fixes #20395.

johnajacob/bootstrap,Delagen/bootstrap,zalog/bootstrap,slavanga/bootstrap,tibo66/bootstrap,TheFridayInstitute/bootstrap,Hemphill/bootstrap-docs,Lyricalz/bootstrap,stanwmusic/bootstrap,tagliala/bootstrap,lemuelbarango/bootstrap,tomlutzenberger/bootstrap,stanwmusic/bootstrap,sealocal/bootstrap,gijsbotje/bootstrap,edanbarak/bootstrap,Scoutski/bootstrap,tibo66/bootstrap,TheFridayInstitute/bootstrap,Scoutski/bootstrap,nice-fungal/bootstrap,johnajacob/bootstrap,janseliger/bootstrap,kvlsrg/bootstrap,seanwu99/bootstrap,bardiharborow/bootstrap,inway/bootstrap,JumpLinkNetwork/bootstrap-backward,lipis/bootstrap,Scoutski/bootstrap,copperdesign/bootstrap,Delagen/bootstrap,janseliger/bootstrap,supergibbs/bootstrap,edanbarak/bootstrap,gijsbotje/bootstrap,abvalentine/bootstrap,bardiharborow/bootstrap,zalog/bootstrap,vsn4ik/bootstrap,xt0rted/bootstrap,janseliger/bootstrap,NCARB/bootstrap,lipis/bootstrap,abvalentine/bootstrap,IdanCo/bootstrap,afuno/bootstrap,Hemphill/bootstrap-docs,xt0rted/bootstrap,tagliala/bootstrap,Lyricalz/bootstrap,SweetProcess/bootstrap,gijsbotje/bootstrap,igoynawamreh/bootstrap,fschumann1211/bootstrap,afuno/bootstrap,Hemphill/bootstrap-docs,n054/bootstrap,JumpLinkNetwork/bootstrap-backward,joblocal/bootstrap,hebbet/bootstrap,twbs/bootstrap,abvalentine/bootstrap,nice-fungal/bootstrap,sealocal/bootstrap,realcrowd/bootstrap,Delagen/bootstrap,seanwu99/bootstrap,Delagen/bootstrap,abvalentine/bootstrap,SweetProcess/bootstrap,creativewebjp/bootstrap,jipexu/bootstrap,peterblazejewicz/bootstrap,davethegr8/bootstrap,IdanCo/bootstrap,vsn4ik/bootstrap,SweetProcess/bootstrap,supergibbs/bootstrap,davethegr8/bootstrap,yuyokk/bootstrap,slavanga/bootstrap,lemuelbarango/bootstrap,lipis/bootstrap,seanwu99/bootstrap,gijsbotje/bootstrap,slavanga/bootstrap,andresgalante/bootstrap,sealocal/bootstrap,Hemphill/bootstrap-docs,tagliala/bootstrap,inway/bootstrap,joblocal/bootstrap,tibo66/bootstrap,hebbet/bootstrap,sealocal/bootstrap,joblocal/bootstrap,kvlsrg/bootstrap,johnajacob/bootstrap,xt0rted/bootstrap,9-chirno/chirno,igoynawamreh/bootstrap,n054/bootstrap,igoynawamreh/bootstrap,9-chirno/chirno,joblocal/bootstrap,bootstrapbrasil/bootstrap,GerHobbelt/bootstrap,bootstrapbrasil/bootstrap,copperdesign/bootstrap,tibo66/bootstrap,twbs/bootstrap,stanwmusic/bootstrap,copperdesign/bootstrap,davethegr8/bootstrap,bardiharborow/bootstrap,jipexu/bootstrap,fschumann1211/bootstrap,jipexu/bootstrap,davethegr8/bootstrap,yuyokk/bootstrap,edanbarak/bootstrap,realcrowd/bootstrap,m5o/bootstrap,NCARB/bootstrap,kvlsrg/bootstrap,lipis/bootstrap,supergibbs/bootstrap,m5o/bootstrap,copperdesign/bootstrap,edanbarak/bootstrap,tjkohli/bootstrap,JumpLinkNetwork/bootstrap-backward,coliff/bootstrap,tomlutzenberger/bootstrap,andresgalante/bootstrap,IdanCo/bootstrap,realcrowd/bootstrap,9-chirno/chirno,johnajacob/bootstrap,Scoutski/bootstrap,TheFridayInstitute/bootstrap,creativewebjp/bootstrap,stanwmusic/bootstrap,nice-fungal/bootstrap,jipexu/bootstrap,NCARB/bootstrap,bootstrapbrasil/bootstrap,slavanga/bootstrap,xt0rted/bootstrap,vsn4ik/bootstrap,afuno/bootstrap,IdanCo/bootstrap,NCARB/bootstrap,coliff/bootstrap,Lyricalz/bootstrap,lemuelbarango/bootstrap,zalog/bootstrap,realcrowd/bootstrap,andresgalante/bootstrap,tomlutzenberger/bootstrap,vsn4ik/bootstrap,yuyokk/bootstrap,bardiharborow/bootstrap,yuyokk/bootstrap,n054/bootstrap,JumpLinkNetwork/bootstrap-backward,afuno/bootstrap,fschumann1211/bootstrap,supergibbs/bootstrap,GerHobbelt/bootstrap,hebbet/bootstrap,janseliger/bootstrap,peterblazejewicz/bootstrap,TheFridayInstitute/bootstrap,hebbet/bootstrap,n054/bootstrap,tjkohli/bootstrap,creativewebjp/bootstrap,Lyricalz/bootstrap,inway/bootstrap,fschumann1211/bootstrap,SweetProcess/bootstrap,9-chirno/chirno,andresgalante/bootstrap,seanwu99/bootstrap,creativewebjp/bootstrap,GerHobbelt/bootstrap,igoynawamreh/bootstrap,peterblazejewicz/bootstrap,lemuelbarango/bootstrap