[v6.8.0-rc4] User Shares not available if clearing a disk

Found by @deaerator, after a new disk is added user shares aren't available during clearing, looks to me like Unraid tries to make the new still unformatted disk part of the user shares and it errors out:

Oct 30 07:50:49 Tower emhttpd: shcmd (404): mkdir /mnt/user0
Oct 30 07:50:49 Tower emhttpd: shcmd (405): /usr/local/sbin/shfs /mnt/user0 -disks 131070 -o noatime,allow_other  |& logger
Oct 30 07:50:49 Tower shfs: error: main, 3317: No such file or directory (2): stat: /mnt/disk16 (2) No such file or directory
Oct 30 07:50:49 Tower emhttpd: shcmd (405): exit status: 255
Oct 30 07:50:49 Tower emhttpd: shcmd (406): mkdir /mnt/user
Oct 30 07:50:49 Tower emhttpd: shcmd (407): /usr/local/sbin/shfs /mnt/user -disks 131071 2048000000 -o noatime,allow_other -o remember=330  |& logger
Oct 30 07:50:49 Tower shfs: error: main, 3317: No such file or directory (2): stat: /mnt/disk16 (2) No such file or directory

tower-diagnostics-20191030-1051.zip