i have also noticed that in miner per coin it shows something like 1.4 Mh/s shared mode and 50.6 Mh/s solo mode on various algorythms while you can see that 3 miners that i run all use c=btc,m=solo it shows that i have shares in shared mode while i have shared configured only for progpow.
https://imgur.com/Rs7Vjvz