When a full section is specified as the field parameter in terse tabular
mode, the section name should be printed followed by all the field values
belonging to that section separated by ':'. The NAME of section CONNECTIONS
was missing.
sample command:
$ nmcli -m tab -t -f CONNECTIONS device show ens3
previous output was:
/org/freedesktop/NetworkManager/Settings/{1}:5059XXX-XXXX.. | ens3-dhcp
now:
CONNECTIONS:/org/freedesktop/NetworkManager/Settings/{1}:5059XXX-XXXX.. | ens3-dhcp