Allow only selected address to connect to openssh
Solution 1:
According to sshd_config man page (OpenSSH_8.0p1):
For each keyword, the first obtained value will be used.
So I guess the first example looks like the correct one.
Please note: I have strong feeling this changed recently (from the LAST value to be used) so please check your man pages. And (as I just checked it) it doesn't look like it is working as described so you may have to experiment.