about static route

[pythonwood]

Describe the bug

X-WRT 8.0_b202011021240 Focal / LuCI Master git-20.306.70518-d175656

luci web set and check by shell

static route set : 192.168.8.1(dst) 255.255.255.255(netmask) 192.168.5.21(gw)

can get route rule by shell
route -n

192.168.8.1     192.168.5.21    255.255.255.255 UGH   0      0        0 br-lan
....

but static route set : 192.168.8.0(dst) 255.255.255.0(netmask) 192.168.5.21(gw)

can not get route rule by shell route -n

[ptpt52]

Can't reproduce this issue