Beniamino Galvani authored May 07, 2019 and Lubomir Rintel committed May 21, 2019

Consider the situation in which ipv4.method=auto and there is an
address configured. Also, the DHCP timeout is long and there is no
DHCP server. If the link is brought down temporarily, the prefix route
for the static address is lost and not restored by NM because we
reapply the IP configuration only when the IP state is DONE.

The same can happen also for IPv6, but in that case also static IPv6
addresses are lost.

We should always reapply the IP configuration when the link goes up.

(cherry picked from commit d0b16b92)
(cherry picked from commit 4482ca64)