Make click on canvas fire for only one layer (#5100)
Make click on canvas fire for only one layer (#5100)

Close #5091.
jasonoverland/Leaflet,frogcat/Leaflet,geoloep/Leaflet,codeator/Leaflet,Neorth/Leaflet,Leaflet/Leaflet,stefanocudini/Leaflet,codeator/Leaflet,davojta/Leaflet,Neorth/Leaflet,Ubisense/Leaflet,codeator/Leaflet,Trufi/Leaflet,stefanocudini/Leaflet,CapeSepias/Leaflet,CapeSepias/Leaflet,AP-whitehat/Leaflet,iZucken/Leaflet,davojta/Leaflet,rlugojr/Leaflet,msiadak/Leaflet,geoloep/Leaflet,frogcat/Leaflet,Ubisense/Leaflet,AP-whitehat/Leaflet,scaddenp/Leaflet,Ubisense/Leaflet,scaddenp/Leaflet,frogcat/Leaflet,CapeSepias/Leaflet,iZucken/Leaflet,Trufi/Leaflet,davojta/Leaflet,jasonoverland/Leaflet,Leaflet/Leaflet,msiadak/Leaflet,rlugojr/Leaflet,rlugojr/Leaflet,AP-whitehat/Leaflet,geoloep/Leaflet,iZucken/Leaflet,stefanocudini/Leaflet,msiadak/Leaflet,Neorth/Leaflet,Trufi/Leaflet,jasonoverland/Leaflet,scaddenp/Leaflet,Leaflet/Leaflet